diff --git a/library/signal.po b/library/signal.po
index ca7802204d..6119c47a3f 100644
--- a/library/signal.po
+++ b/library/signal.po
@@ -27,11 +27,11 @@ msgstr "**原始碼：**\\ :source:`Lib/signal.py`"
 
 #: ../../library/signal.rst:11
 msgid "This module provides mechanisms to use signal handlers in Python."
-msgstr ""
+msgstr "本模組提供於 Python 中使用訊號處理程式的機制。"
 
 #: ../../library/signal.rst:15
 msgid "General rules"
-msgstr ""
+msgstr "一般規則"
 
 #: ../../library/signal.rst:17
 msgid ""
@@ -42,6 +42,10 @@ msgid ""
 "translated into a :exc:`KeyboardInterrupt` exception if the parent process "
 "has not changed it."
 msgstr ""
+":func:`signal.signal` 函式允許定義自訂的處理程式，會在收到訊號時執行。我們安"
+"裝了少數的預設處理程式：:const:`SIGPIPE` 會被忽略 (所以管道和 socket 上的寫入"
+"錯誤可以當作一般的 Python 例外報告)，而 :const:`SIGINT`\\ （如果父行程沒有改"
+"變它的話）會被轉換成 :exc:`KeyboardInterrupt` 例外。"
 
 #: ../../library/signal.rst:24
 msgid ""
@@ -50,6 +54,9 @@ msgid ""
 "underlying implementation), with the exception of the handler for :const:"
 "`SIGCHLD`, which follows the underlying implementation."
 msgstr ""
+"特定訊號的處理程式一旦被設定，就會一直被安裝，直到被明確地重設為止 (不管底層"
+"的實作為何，Python 皆模擬出 BSD 風格的介面)，但 :const:`SIGCHLD` 的處理程式除"
+"外，它會跟隨底層的實作。"
 
 #: ../../library/signal.rst:29
 msgid ""
@@ -57,10 +64,12 @@ msgid ""
 "differently. Several functions and signals are not available on these "
 "platforms."
 msgstr ""
+"在 WebAssembly 平台上，訊號是模擬出來的，故行為不同。有幾個函式和訊號在這些平"
+"台上是不可用的。"
 
 #: ../../library/signal.rst:34
 msgid "Execution of Python signal handlers"
-msgstr ""
+msgstr "Python 訊號處理程式的執行"
 
 #: ../../library/signal.rst:36
 msgid ""
@@ -70,6 +79,10 @@ msgid ""
 "handler at a later point(for example at the next :term:`bytecode` "
 "instruction). This has consequences:"
 msgstr ""
+"Python 訊號處理程式不會在低階（C 語言）訊號處理程式中執行。相反地，低階訊號處"
+"理程式會設定一個旗標，告訴\\ :term:`虛擬機 <virtual machine>`\\ 在稍後執行相"
+"對應的 Python 訊號處理程式（例如在下一個 :term:`bytecode` 指令）。這會有一些"
+"後果："
 
 #: ../../library/signal.rst:42
 msgid ""
@@ -80,6 +93,10 @@ msgid ""
 "onwards, you can use the :mod:`faulthandler` module to report on synchronous "
 "errors."
 msgstr ""
+"捕捉像 :const:`SIGFPE` 或 :const:`SIGSEGV` 這類由 C 程式碼中無效操作所引起的"
+"同步錯誤是沒有意義的。Python 將從訊號處理程式中回傳到 C 程式碼，而 C 程式碼很"
+"可能再次引發相同的訊號，導致 Python 明顯假當機 (hang)。從 Python 3.3 開始，你"
+"可以使用 :mod:`faulthandler` 模組來報告同步錯誤。"
 
 #: ../../library/signal.rst:49
 msgid ""
@@ -88,6 +105,9 @@ msgid ""
 "arbitrary amount of time, regardless of any signals received.  The Python "
 "signal handlers will be called when the calculation finishes."
 msgstr ""
+"純粹以 C 實作的長時間計算（例如在大量文字上的正規表示式比對）可能會不間斷地運"
+"行任意長度的時間而不考慮收到的任何訊號。當計算完成時，Python 訊號處理程式會被"
+"呼叫。"
 
 #: ../../library/signal.rst:54
 msgid ""
@@ -95,10 +115,12 @@ msgid ""
 "the main thread. See the :ref:`note below <handlers-and-exceptions>` for a "
 "discussion."
 msgstr ""
+"如果處理程式引發例外，就會在主執行緒中「憑空」產生例外。請參閱\\ :ref:`下面的"
+"說明 <handlers-and-exceptions>`。"
 
 #: ../../library/signal.rst:62
 msgid "Signals and threads"
-msgstr ""
+msgstr "訊號和執行緒"
 
 #: ../../library/signal.rst:64
 msgid ""
@@ -108,12 +130,15 @@ msgid ""
 "You can use the synchronization primitives from the :mod:`threading` module "
 "instead."
 msgstr ""
+"Python 訊號處理程式總是在主直譯器的主 Python 執行緒中執行，即使訊號是在另一個"
+"執行緒中接收到的。這意味著訊號不能用來做為執行緒間通訊的方式。你可以使用 :"
+"mod:`threading` 模組的同步原語 (synchronization primitive) 來代替。"
 
 #: ../../library/signal.rst:69
 msgid ""
 "Besides, only the main thread of the main interpreter is allowed to set a "
 "new signal handler."
-msgstr ""
+msgstr "此外，只有主直譯器的主執行緒才被允許設定新的訊號處理程式。"
 
 #: ../../library/signal.rst:73
 msgid "Module contents"
@@ -129,27 +154,36 @@ msgid ""
 "`sigwait` functions return human-readable :class:`enums <enum.IntEnum>` as :"
 "class:`Signals` objects."
 msgstr ""
+"下面列出的訊號 (SIG*)、處理器（:const:`SIG_DFL`、:const:`SIG_IGN`）和訊號遮"
+"罩 (sigmask)（:const:`SIG_BLOCK`、:const:`SIG_UNBLOCK`、:const:"
+"`SIG_SETMASK`）的相關常數被轉換成 :class:`enums <enum.IntEnum>`\\ （:class:"
+"`Signals`、:class:`Handlers` 和 :class:`Sigmasks`）。:func:`getsignal`、:"
+"func:`pthread_sigmask`、:func:`sigpending` 和 :func:`sigwait` 函式會回傳可被"
+"人類閱讀的\\ :class:`枚舉 <enum.IntEnum>`\\ 作為 :class:`Signals` 物件。"
 
 #: ../../library/signal.rst:85
 msgid "The signal module defines three enums:"
-msgstr ""
+msgstr "訊號模組定義了三個枚舉："
 
 #: ../../library/signal.rst:89
 msgid ""
 ":class:`enum.IntEnum` collection of SIG* constants and the CTRL_* constants."
-msgstr ""
+msgstr "SIG* 常數和 CTRL_* 常數的 :class:`enum.IntEnum` 集合。"
 
 #: ../../library/signal.rst:95
 msgid ""
 ":class:`enum.IntEnum` collection the constants :const:`SIG_DFL` and :const:"
 "`SIG_IGN`."
 msgstr ""
+":const:`SIG_DFL` 和 :const:`SIG_IGN` 常數的 :class:`enum.IntEnum` 集合。"
 
 #: ../../library/signal.rst:101
 msgid ""
 ":class:`enum.IntEnum` collection the constants :const:`SIG_BLOCK`, :const:"
 "`SIG_UNBLOCK` and :const:`SIG_SETMASK`."
 msgstr ""
+":const:`SIG_BLOCK`、:const:`SIG_UNBLOCK` 和 :const:`SIG_SETMASK` 常數的 :"
+"class:`enum.IntEnum` 集合。"
 
 #: ../../library/signal.rst:103 ../../library/signal.rst:136
 #: ../../library/signal.rst:142 ../../library/signal.rst:148
@@ -173,12 +207,12 @@ msgid ""
 "See the man page :manpage:`sigprocmask(2)` and :manpage:`pthread_sigmask(3)` "
 "for further information."
 msgstr ""
-"更多資訊請見 :manpage:`sigprocmask(2)` 與 :manpage:`pthread_sigmask(3)` 手冊"
-"頁。"
+"更多資訊請見 :manpage:`sigprocmask(2)` 與 :manpage:`pthread_sigmask(3)` 線上"
+"手冊。"
 
 #: ../../library/signal.rst:111
 msgid "The variables defined in the :mod:`signal` module are:"
-msgstr ""
+msgstr "在 :mod:`signal` 模組中定義的變數有："
 
 #: ../../library/signal.rst:116
 msgid ""
@@ -187,32 +221,35 @@ msgid ""
 "default action for :const:`SIGQUIT` is to dump core and exit, while the "
 "default action for :const:`SIGCHLD` is to simply ignore it."
 msgstr ""
+"這是兩種標準訊號處理選項之一；它會簡單地執行訊號的預設功能。例如，在大多數系"
+"統上，:const:`SIGQUIT` 的預設動作是轉儲 (dump) 核心並退出，而 :const:"
+"`SIGCHLD` 的預設動作是直接忽略。"
 
 #: ../../library/signal.rst:124
 msgid ""
 "This is another standard signal handler, which will simply ignore the given "
 "signal."
-msgstr ""
+msgstr "這是另一個標準的訊號處理程式，會直接忽略給定的訊號。"
 
 #: ../../library/signal.rst:130
 msgid "Abort signal from :manpage:`abort(3)`."
-msgstr ""
+msgstr "來自 :manpage:`abort(3)` 的中止訊號。"
 
 #: ../../library/signal.rst:134
 msgid "Timer signal from :manpage:`alarm(2)`."
-msgstr ""
+msgstr "來自 :manpage:`alarm(2)` 的計時器訊號。"
 
 #: ../../library/signal.rst:140
 msgid "Interrupt from keyboard (CTRL + BREAK)."
-msgstr ""
+msgstr "從鍵盤中斷 (CTRL + BREAK)。"
 
 #: ../../library/signal.rst:146
 msgid "Bus error (bad memory access)."
-msgstr ""
+msgstr "匯流排錯誤（記憶體存取不良）。"
 
 #: ../../library/signal.rst:152
 msgid "Child process stopped or terminated."
-msgstr ""
+msgstr "子行程停止或終止。"
 
 #: ../../library/signal.rst:158
 msgid "Alias to :data:`SIGCHLD`."
@@ -220,82 +257,87 @@ msgstr ":data:`SIGCHLD` 的別名。"
 
 #: ../../library/signal.rst:164
 msgid "Continue the process if it is currently stopped"
-msgstr ""
+msgstr "如果目前行程是被停止的，則繼續運行"
 
 #: ../../library/signal.rst:170
 msgid "Floating-point exception. For example, division by zero."
-msgstr ""
+msgstr "浮點運算例外。例如除以零。"
 
 #: ../../library/signal.rst:173
 msgid ""
 ":exc:`ZeroDivisionError` is raised when the second argument of a division or "
 "modulo operation is zero."
 msgstr ""
+":exc:`ZeroDivisionError` 會在除法或模運算 (modulo operation) 的第二個引數為零"
+"時引發。"
 
 #: ../../library/signal.rst:178
 msgid ""
 "Hangup detected on controlling terminal or death of controlling process."
-msgstr ""
+msgstr "偵測到控制終端機掛斷 (hangup) 或控制行程死亡。"
 
 #: ../../library/signal.rst:184
 msgid "Illegal instruction."
-msgstr ""
+msgstr "非法指令。"
 
 #: ../../library/signal.rst:188
 msgid "Interrupt from keyboard (CTRL + C)."
-msgstr ""
+msgstr "從鍵盤中斷 (CTRL + C)。"
 
 #: ../../library/signal.rst:190
 msgid "Default action is to raise :exc:`KeyboardInterrupt`."
-msgstr ""
+msgstr "預設動作是引發 :exc:`KeyboardInterrupt`。"
 
 #: ../../library/signal.rst:194
 msgid "Kill signal."
-msgstr ""
+msgstr "殺死訊號。"
 
 #: ../../library/signal.rst:196
 msgid "It cannot be caught, blocked, or ignored."
-msgstr ""
+msgstr "它無法被捕捉、阻擋或忽略。"
 
 #: ../../library/signal.rst:202
 msgid "Broken pipe: write to pipe with no readers."
-msgstr ""
+msgstr "管道中斷 (broken pipe)：寫到沒有讀取器 (reader) 的管道。"
 
 #: ../../library/signal.rst:204
 msgid "Default action is to ignore the signal."
-msgstr ""
+msgstr "預設動作是忽略訊號。"
 
 #: ../../library/signal.rst:210
 msgid "Segmentation fault: invalid memory reference."
-msgstr ""
+msgstr "記憶體區段錯誤 (segmentation fault)：無效記憶體參照。"
 
 #: ../../library/signal.rst:214
 msgid ""
 "Stack fault on coprocessor. The Linux kernel does not raise this signal: it "
 "can only be raised in user space."
 msgstr ""
+"輔助處理器 (coprocessor) 上的堆疊錯誤 (stack fault)。Linux 核心不會引發此訊"
+"號：它只能在使用者空間 (user space) 中引發。"
 
 #: ../../library/signal.rst:219
 msgid ""
 "On architectures where the signal is available. See the man page :manpage:"
 "`signal(7)` for further information."
 msgstr ""
+"在訊號可用的架構上。請參閱 :manpage:`signal(7)` 線上手冊以取得更多資訊。"
 
 #: ../../library/signal.rst:226
 msgid "Termination signal."
-msgstr ""
+msgstr "終止訊號。"
 
 #: ../../library/signal.rst:230
 msgid "User-defined signal 1."
-msgstr ""
+msgstr "使用者定義訊號 1。"
 
 #: ../../library/signal.rst:236
 msgid "User-defined signal 2."
-msgstr ""
+msgstr "使用者定義訊號 2。"
 
 #: ../../library/signal.rst:242
 msgid "Window resize signal."
-msgstr ""
+msgstr "視窗調整大小訊號。"
 
 #: ../../library/signal.rst:248
 msgid ""
@@ -307,36 +349,46 @@ msgid ""
 "`signal(7)`). Note that not all systems define the same set of signal names; "
 "only those names defined by the system are defined by this module."
 msgstr ""
+"所有的訊號編號都是以符號定義的。例如，掛斷訊號被定義為 :const:`signal."
+"SIGHUP`；變數名稱與 C 程式中使用的名稱相同，可在 ``<signal.h>`` 中找到。Unix "
+"線上手冊 ':c:func:`signal`' 列出了現有的訊號（在某些系統上是 :manpage:"
+"`signal(2)`，在其他系統上是在 :manpage:`signal(7)` 中）。請注意，並非所有系統"
+"都會定義同一套訊號名稱；只有那些由系統所定義的名稱才會由這個模組定義。"
 
 #: ../../library/signal.rst:259
 msgid ""
 "The signal corresponding to the :kbd:`Ctrl+C` keystroke event. This signal "
 "can only be used with :func:`os.kill`."
 msgstr ""
+"與 :kbd:`Ctrl+C` 擊鍵 (keystroke) 事件相對應的訊號。此訊號只能與 :func:`os."
+"kill` 搭配使用。"
 
 #: ../../library/signal.rst:269
 msgid ""
 "The signal corresponding to the :kbd:`Ctrl+Break` keystroke event. This "
 "signal can only be used with :func:`os.kill`."
 msgstr ""
+"與 :kbd:`Ctrl+Break` 擊鍵事件相對應的訊號。此訊號只能與 :func:`os.kill` 搭配"
+"使用。"
 
 #: ../../library/signal.rst:279
 msgid ""
 "One more than the number of the highest signal number. Use :func:"
 "`valid_signals` to get valid signal numbers."
 msgstr ""
+"比最高編號訊號的編號多一。使用 :func:`valid_signals` 來取得有效的訊號編號。"
 
 #: ../../library/signal.rst:285
 msgid ""
 "Decrements interval timer in real time, and delivers :const:`SIGALRM` upon "
 "expiration."
-msgstr ""
+msgstr "即時減少間隔計時器 (interval timer)，並在到期時送出 :const:`SIGALRM`。"
 
 #: ../../library/signal.rst:291
 msgid ""
 "Decrements interval timer only when the process is executing, and delivers "
 "SIGVTALRM upon expiration."
-msgstr ""
+msgstr "僅在執行行程時遞減間隔計時器，並在到期時傳送 SIGVTALRM。"
 
 #: ../../library/signal.rst:297
 msgid ""
@@ -345,28 +397,33 @@ msgid ""
 "timer is usually used to profile the time spent by the application in user "
 "and kernel space. SIGPROF is delivered upon expiration."
 msgstr ""
+"當行程執行或系統代表行程執行時，都會減少間隔計時器。與 ITIMER_VIRTUAL 配合，"
+"這個計時器通常用來分析 (profile) 應用程式在使用者空間與核心空間 (kernel "
+"space) 所花費的時間。SIGPROF 會在到期時傳送。"
 
 #: ../../library/signal.rst:305
 msgid ""
 "A possible value for the *how* parameter to :func:`pthread_sigmask` "
 "indicating that signals are to be blocked."
-msgstr ""
+msgstr ":func:`pthread_sigmask` 的 *how* 參數的可能值，表示訊號將被阻檔。"
 
 #: ../../library/signal.rst:312
 msgid ""
 "A possible value for the *how* parameter to :func:`pthread_sigmask` "
 "indicating that signals are to be unblocked."
-msgstr ""
+msgstr ":func:`pthread_sigmask` 的 *how* 參數的可能值，表示訊號將被解除阻檔。"
 
 #: ../../library/signal.rst:319
 msgid ""
 "A possible value for the *how* parameter to :func:`pthread_sigmask` "
 "indicating that the signal mask is to be replaced."
 msgstr ""
+":func:`pthread_sigmask` 的 *how* 參數的可能值，表示訊號遮罩 (signal mask) 要"
+"被取代。"
 
 #: ../../library/signal.rst:325
 msgid "The :mod:`signal` module defines one exception:"
-msgstr ""
+msgstr ":mod:`signal` 模組定義了一個例外："
 
 #: ../../library/signal.rst:329
 msgid ""
@@ -375,16 +432,19 @@ msgid ""
 "or a negative time is passed to :func:`setitimer`. This error is a subtype "
 "of :exc:`OSError`."
 msgstr ""
+"當 :func:`setitimer` 或 :func:`getitimer` 底層實作發生錯誤時引發訊號。如果傳"
+"給 :func:`setitimer` 的是無效的間隔計時器或負數時間，則預期會發生此錯誤。這個"
+"錯誤是 :exc:`OSError` 的子型別。"
 
 #: ../../library/signal.rst:334
 msgid ""
 "This error used to be a subtype of :exc:`IOError`, which is now an alias of :"
 "exc:`OSError`."
-msgstr ""
+msgstr "此錯誤過去是 :exc:`IOError` 的子型別，現在是 :exc:`OSError` 的別名。"
 
 #: ../../library/signal.rst:339
 msgid "The :mod:`signal` module defines the following functions:"
-msgstr ""
+msgstr ":mod:`signal` 模組定義了下列函式："
 
 #: ../../library/signal.rst:344
 msgid ""
@@ -396,10 +456,15 @@ msgid ""
 "alarm is canceled.  If the return value is zero, no alarm is currently "
 "scheduled."
 msgstr ""
+"如果 *time* 非零，則此函式會要求在 *time* 秒後傳送 :const:`SIGALRM` 訊號給該"
+"行程。任何先前排程 (scheduled) 的警報都會被取消（任何時候都只能排程一個警"
+"報）。回傳值是先前設定的警報原本再等多久就會被傳送的秒數。如果 *time* 為零，"
+"則不會去排程任何警報，且已排程的警報會被取消。如果回傳值為零，則代表目前未排"
+"程任何警報。"
 
 #: ../../library/signal.rst:353
 msgid "See the man page :manpage:`alarm(2)` for further information."
-msgstr "更多資訊請見 :manpage:`alarm(2)` 手冊頁。"
+msgstr "更多資訊請見 :manpage:`alarm(2)` 線上手冊。"
 
 #: ../../library/signal.rst:358
 msgid ""
@@ -411,6 +476,11 @@ msgid ""
 "previously in use, and ``None`` means that the previous signal handler was "
 "not installed from Python."
 msgstr ""
+"回傳訊號 *signalnum* 的目前訊號處理程式。回傳值可以是一個可呼叫的 Python 物"
+"件，或是特殊值 :const:`signal.SIG_IGN`、:const:`signal.SIG_DFL` 或 :const:"
+"`None` 之一。這裡的 :const:`signal.SIG_IGN` 表示訊號先前被忽略，:const:"
+"`signal.SIG_DFL` 表示訊號先前使用預設的處理方式，而 ``None`` 表示先前的訊號處"
+"理程式並未從 Python 安裝。"
 
 #: ../../library/signal.rst:369
 msgid ""
@@ -418,6 +488,9 @@ msgid ""
 "const:`SIGINT`. Returns :const:`None` if *signalnum* has no description. "
 "Raises :exc:`ValueError` if *signalnum* is invalid."
 msgstr ""
+"回傳訊號 *signalnum* 的描述，例如 :const:`SIGINT` 的 \"Interrupt\"。如果 "
+"*signalnum* 沒有描述，則回傳 :const:`None`。如果 *signalnum* 無效則會引發 :"
+"exc:`ValueError`。"
 
 #: ../../library/signal.rst:378
 msgid ""
@@ -425,26 +498,30 @@ msgid ""
 "than ``range(1, NSIG)`` if some signals are reserved by the system for "
 "internal use."
 msgstr ""
+"回傳此平台上的有效訊號編號集合。如果某些訊號被系統保留作為內部使用，則此值可"
+"能小於 ``range(1, NSIG)``。"
 
 #: ../../library/signal.rst:387
 msgid ""
 "Cause the process to sleep until a signal is received; the appropriate "
 "handler will then be called.  Returns nothing."
-msgstr ""
+msgstr "使行程休眠，直到接收到訊號；然後呼叫適當的處理程式。不會回傳任何東西。"
 
 #: ../../library/signal.rst:392
 msgid "See the man page :manpage:`signal(2)` for further information."
-msgstr "更多資訊請見 :manpage:`signal(2)` 手冊頁。"
+msgstr "更多資訊請見 :manpage:`signal(2)` 線上手冊。"
 
 #: ../../library/signal.rst:394
 msgid ""
 "See also :func:`sigwait`, :func:`sigwaitinfo`, :func:`sigtimedwait` and :"
 "func:`sigpending`."
 msgstr ""
+"也請見 :func:`sigwait`、:func:`sigwaitinfo`、:func:`sigtimedwait` 和 :func:"
+"`sigpending`。"
 
 #: ../../library/signal.rst:400
 msgid "Sends a signal to the calling process. Returns nothing."
-msgstr ""
+msgstr "傳送訊號至呼叫的行程。不會回傳任何東西。"
 
 #: ../../library/signal.rst:407
 msgid ""
@@ -453,10 +530,12 @@ msgid ""
 "``None``.  The *flags* argument is provided for future extensions; no flag "
 "values are currently defined."
 msgstr ""
+"傳送訊號 *sig* 到檔案描述器 *pidfd* 所指的行程。Python 目前不支援 *siginfo* "
+"參數；它必須是 ``None``。*flags* 引數是提供給未來的擴充；目前沒有定義旗標值。"
 
 #: ../../library/signal.rst:412
 msgid "See the :manpage:`pidfd_send_signal(2)` man page for more information."
-msgstr "更多資訊請見 :manpage:`pidfd_send_signal(2)` 手冊頁。"
+msgstr "更多資訊請見 :manpage:`pidfd_send_signal(2)` 線上手冊。"
 
 #: ../../library/signal.rst:420
 msgid ""
@@ -468,6 +547,11 @@ msgid ""
 "point of sending a signal to a particular Python thread would be to force a "
 "running system call to fail with :exc:`InterruptedError`."
 msgstr ""
+"將訊號 *signalnum* 傳送給與呼叫者在同一行程中的另一個執行緒 *thread_id*。目標"
+"執行緒能執行任何程式碼（無論為 Python 與否）。但是，如果目標執行緒正執行 "
+"Python 直譯器，Python 訊號處理程式將會\\ :ref:`由主直譯器的主執行緒來執行 "
+"<signals-and-threads>`。因此，向特定 Python 執行緒發送訊號的唯一意義是強制執"
+"行中的系統呼叫以 :exc:`InterruptedError` 方式失敗。"
 
 #: ../../library/signal.rst:428
 msgid ""
@@ -475,12 +559,16 @@ msgid ""
 "attribute of :class:`threading.Thread` objects to get a suitable value for "
 "*thread_id*."
 msgstr ""
+"使用 :func:`threading.get_ident` 或 :class:`threading.Thread` 物件的 :attr:"
+"`~threading.Thread.ident` 屬性來取得 *thread_id* 的適當值。"
 
 #: ../../library/signal.rst:432
 msgid ""
 "If *signalnum* is 0, then no signal is sent, but error checking is still "
 "performed; this can be used to check if the target thread is still running."
 msgstr ""
+"如果 *signalnum* 為 0，則不會傳送訊號，但仍會執行錯誤檢查；這可用來檢查目標執"
+"行緒是否仍在執行。"
 
 #: ../../library/signal.rst:435
 msgid ""
@@ -492,7 +580,7 @@ msgstr ""
 
 #: ../../library/signal.rst:439
 msgid "See the man page :manpage:`pthread_kill(3)` for further  information."
-msgstr "更多資訊請見 :manpage:`pthread_kill(3)` 手冊頁。"
+msgstr "更多資訊請見 :manpage:`pthread_kill(3)` 線上手冊。"
 
 #: ../../library/signal.rst:441
 msgid "See also :func:`os.kill`."
@@ -504,17 +592,20 @@ msgid ""
 "is the set of signals whose delivery is currently blocked for the caller. "
 "Return the old signal mask as a set of signals."
 msgstr ""
+"擷取和/或變更呼叫執行緒的訊號遮罩。訊號遮罩是目前阻擋呼叫者傳送的訊號集合。將"
+"舊的訊號遮罩作為一組訊號集合回傳。"
 
 #: ../../library/signal.rst:452
 msgid ""
 "The behavior of the call is dependent on the value of *how*, as follows."
-msgstr ""
+msgstr "呼叫的行為取決於 *how* 的值，如下所示。"
 
 #: ../../library/signal.rst:454
 msgid ""
 ":data:`SIG_BLOCK`: The set of blocked signals is the union of the current "
 "set and the *mask* argument."
 msgstr ""
+":data:`SIG_BLOCK`：被阻檔的訊號集合是目前訊號集合與 *mask* 引數的聯集。"
 
 #: ../../library/signal.rst:456
 msgid ""
@@ -522,12 +613,14 @@ msgid ""
 "of blocked signals.  It is permissible to attempt to unblock a signal which "
 "is not blocked."
 msgstr ""
+":data:`SIG_UNBLOCK`：將 *mask* 中的訊號從目前阻檔的訊號集合中移除。嘗試為未被"
+"阻檔的訊號解除阻檔是允許的。"
 
 #: ../../library/signal.rst:459
 msgid ""
 ":data:`SIG_SETMASK`: The set of blocked signals is set to the *mask* "
 "argument."
-msgstr ""
+msgstr ":data:`SIG_SETMASK`：將被阻檔的訊號集合設定為 *mask* 引數。"
 
 #: ../../library/signal.rst:462
 msgid ""
@@ -535,16 +628,21 @@ msgid ""
 "`signal.SIGTERM`}). Use :func:`~signal.valid_signals` for a full mask "
 "including all signals."
 msgstr ""
+"*mask* 是一組訊號編號（例如 {:const:`signal.SIGINT`, :const:`signal."
+"SIGTERM`}）的集合。使用 :func:`~signal.valid_signals` 來取得包含所有訊號的完"
+"整遮罩。"
 
 #: ../../library/signal.rst:466
 msgid ""
 "For example, ``signal.pthread_sigmask(signal.SIG_BLOCK, [])`` reads the "
 "signal mask of the calling thread."
 msgstr ""
+"例如，``signal.pthread_sigmask(signal.SIG_BLOCK, [])`` 會讀取呼叫執行緒的訊號"
+"遮罩。"
 
 #: ../../library/signal.rst:469
 msgid ":data:`SIGKILL` and :data:`SIGSTOP` cannot be blocked."
-msgstr ""
+msgstr ":data:`SIGKILL` 和 :data:`SIGSTOP` 不能被阻檔。"
 
 #: ../../library/signal.rst:476
 msgid "See also :func:`pause`, :func:`sigpending` and :func:`sigwait`."