diff --git a/library/_thread.po b/library/_thread.po
index dec384a0ef..cc148fae2f 100644
--- a/library/_thread.po
+++ b/library/_thread.po
@@ -31,26 +31,30 @@ msgid ""
 "provided. The :mod:`threading` module provides an easier to use and higher-"
 "level threading API built on top of this module."
 msgstr ""
+"這個模組提供了與多個執行緒（也稱為:dfn:`輕量級行程` 或 :dfn: `任務`）一起工作"
+"的低階原始物件 --- 多個控制執行緒分享其全域資料空間。為了處理同步問題，也提供了簡"
+"單的鎖 (lock) 機制（也稱為:dfn:`互斥鎖` 或 :dfn:`二進位號誌`）。 :mod:"
+"`threading` 模組提供了一個建立在這個模組之上的更易於使用和高階的執行緒 API。"
 
 #: ../../library/_thread.rst:26
 msgid "This module used to be optional, it is now always available."
-msgstr ""
+msgstr "這個模組之前是可選擇性的，但現在已經是可用的。"
 
 #: ../../library/_thread.rst:29
 msgid "This module defines the following constants and functions:"
-msgstr ""
+msgstr "這個模組定義了以下的常數和函式："
 
 #: ../../library/_thread.rst:33
 msgid "Raised on thread-specific errors."
-msgstr ""
+msgstr "在執行緒相關的錯誤發生時引發。"
 
 #: ../../library/_thread.rst:35
 msgid "This is now a synonym of the built-in :exc:`RuntimeError`."
-msgstr ""
+msgstr "現在是內建例外 :exc:`RuntimeError` 的別名。"
 
 #: ../../library/_thread.rst:41
 msgid "This is the type of lock objects."
-msgstr ""
+msgstr "這是鎖物件的型別。"
 
 #: ../../library/_thread.rst:46
 msgid ""
@@ -58,10 +62,13 @@ msgid ""
 "function *function* with the argument list *args* (which must be a tuple). "
 "The optional *kwargs* argument specifies a dictionary of keyword arguments."
 msgstr ""
+"開始一個新的執行緒並回傳其識別字 (identifier) 。該執行緒執行帶有引數列表 "
+"*args*（必須是一個 tuple（元組））的函式 *function*。可選的 *kwargs* 引數指定"
+"一個關鍵字引數的字典。"
 
 #: ../../library/_thread.rst:50
 msgid "When the function returns, the thread silently exits."
-msgstr ""
+msgstr "當函式回傳時，執行緒會靜默退出。"
 
 #: ../../library/_thread.rst:52
 msgid ""
@@ -70,22 +77,27 @@ msgid ""
 "the hook argument is *function*. By default, a stack trace is printed and "
 "then the thread exits (but other threads continue to run)."
 msgstr ""
+"當函式因未處理的例外終止時，將呼叫 :func:`sys.unraisablehook` 來處理該例外。鉤"
+"子引數的 *object* 屬性是 *function*。預設情況下，會列印堆疊跟蹤，然後執行緒退"
+"出（但其他執行緒會繼續運行）。"
 
 #: ../../library/_thread.rst:57
 msgid ""
 "When the function raises a :exc:`SystemExit` exception, it is silently "
 "ignored."
-msgstr ""
+msgstr "當函式引發 :exc:`SystemExit` 例外時，它會被靜默忽略。"
 
 #: ../../library/_thread.rst:60
 msgid ""
 "Raises an :ref:`auditing event <auditing>` ``_thread.start_new_thread`` with "
 "arguments ``function``, ``args``, ``kwargs``."
 msgstr ""
+"引發一個 :ref:`稽核事件 <auditing>` ``_thread.start_new_thread``，帶有引數 "
+"``function``、``args`` 和 ``kwargs``。"
 
 #: ../../library/_thread.rst:62
 msgid ":func:`sys.unraisablehook` is now used to handle unhandled exceptions."
-msgstr ""
+msgstr "現在使用 :func:`sys.unraisablehook` 來處理未處理的例外。"
 
 #: ../../library/_thread.rst:68
 msgid ""
@@ -93,22 +105,28 @@ msgid ""
 "use this function to interrupt the main thread, though there is no guarantee "
 "that the interruption will happen immediately."
 msgstr ""
+"模擬一個訊號到達主執行緒的效果。執行緒可以使用此函式來中斷主執行緒，但無法保"
+"證中斷會立即發生。"
 
 #: ../../library/_thread.rst:72
 msgid ""
 "If given, *signum* is the number of the signal to simulate. If *signum* is "
 "not given, :const:`signal.SIGINT` is simulated."
 msgstr ""
+"如果提供了 *signum*，則模擬指定的訊號編號。如果未提供 *signum*，則模擬 :"
+"const:`signal.SIGINT` 訊號。"
 
 #: ../../library/_thread.rst:75
 msgid ""
 "If the given signal isn't handled by Python (it was set to :const:`signal."
 "SIG_DFL` or :const:`signal.SIG_IGN`), this function does nothing."
 msgstr ""
+"如果給定的訊號在 Python 中未被處理（即設置為 :const:`signal.SIG_DFL` 或 :"
+"const:`signal.SIG_IGN`），此函式不做任何操作。"
 
 #: ../../library/_thread.rst:79
 msgid "The *signum* argument is added to customize the signal number."
-msgstr ""
+msgstr "新增了 *signum* 引數以自定義訊號編號。"
 
 #: ../../library/_thread.rst:83
 msgid ""
@@ -116,18 +134,20 @@ msgid ""
 "associated handler (if it exists). If you want to truly emit the signal, "
 "use :func:`signal.raise_signal`."
 msgstr ""
+"這並不會發出對應的訊號，而是安排呼叫相應的處理器（如果存在的話）。如果您想真"
+"正發出訊號，請使用 :func:`signal.raise_signal`。"
 
 #: ../../library/_thread.rst:90
 msgid ""
 "Raise the :exc:`SystemExit` exception.  When not caught, this will cause the "
 "thread to exit silently."
-msgstr ""
+msgstr "引發 :exc:`SystemExit` 例外。當未捕獲時，將導致執行緒靜默退出。"
 
 #: ../../library/_thread.rst:104
 msgid ""
 "Return a new lock object.  Methods of locks are described below.  The lock "
 "is initially unlocked."
-msgstr ""
+msgstr "回傳一個新的鎖物件。鎖物件的方法如下所述。初始狀況下鎖是解鎖狀態。"
 
 #: ../../library/_thread.rst:110
 msgid ""
@@ -137,6 +157,9 @@ msgid ""
 "identifiers may be recycled when a thread exits and another thread is "
 "created."
 msgstr ""
+"回傳當前執行緒的「執行緒識別字」。這是一個非零的整數。它的值沒有直接的含義；"
+"它被用作一個 magic cookie，例如用於索引特定於執行緒的資料的字典。當執行緒退出"
+"並建立另一個執行緒時，執行緒識別字可能會被重複使用。"
 
 #: ../../library/_thread.rst:118
 msgid ""
@@ -145,6 +168,9 @@ msgid ""
 "identify this particular thread system-wide (until the thread terminates, "
 "after which the value may be recycled by the OS)."
 msgstr ""
+"回傳由核心 (kernel) 分配的當前執行緒的原生整數執行緒 ID。這是一個非負整數。它"
+"的值可用於在整個系統中唯一標識此特定執行緒（直到執行緒終止後，該值可能被操作"
+"系統重新使用）。"
 
 #: ../../library/_thread.rst:123
 msgid ""
@@ -172,6 +198,15 @@ msgid ""
 "stack size is the suggested approach in the absence of more specific "
 "information)."
 msgstr ""
+"回傳在建立新執行緒時使用的執行緒堆疊大小。可選的 *size* 引數指定了隨後建立的"
+"執行緒要使用的堆疊大小，必須是 0（使用平台或配置的預設值）或至少 32,768（32 "
+"KiB）的正整數值。如果未指定 *size*，則使用 0。如果不支持更改執行緒堆疊大小，"
+"則會引發 :exc:`RuntimeError` 錯誤。如果指定的堆疊大小無效，則會引發 :exc:"
+"`ValueError` 錯誤，並且堆疊大小不會被修改。目前，32 KiB 是保證解譯器本身具有"
+"足夠堆疊空間所支持的最小堆疊大小值。請注意，某些平台對於堆疊大小的值可能有特"
+"定的限制，例如要求最小堆疊大小 > 32 KiB，或要求按系統記憶體頁面大小的倍數進行"
+"分配。應參考平台文檔以獲取更多訊息（4 KiB 頁面是比較普遍的；在缺乏更具體訊息"
+"的情況下，建議使用 4096 的倍數作為堆疊大小）。"
 
 #: ../../library/_thread.rst:145
 msgid ":ref:`Availability <availability>`: Windows, pthreads."
@@ -179,7 +214,7 @@ msgstr ":ref:`適用 <availability>`：Windows, pthreads。"
 
 #: ../../library/_thread.rst:147
 msgid "Unix platforms with POSIX threads support."
-msgstr ""
+msgstr "Unix 平台上支援 POSIX 執行緒。"
 
 #: ../../library/_thread.rst:152
 msgid ""
@@ -187,10 +222,12 @@ msgid ""
 "<threading.Lock.acquire>`. Specifying a timeout greater than this value will "
 "raise an :exc:`OverflowError`."
 msgstr ""
+":meth:`Lock.acquire <threading.Lock.acquire>` 的 *timeout* 參數所允許的最大"
+"值。指定超過此值的 timeout 將引發 :exc:`OverflowError` 錯誤。"
 
 #: ../../library/_thread.rst:159
 msgid "Lock objects have the following methods:"
-msgstr ""
+msgstr "鎖物件具有以下方法："
 
 #: ../../library/_thread.rst:164
 msgid ""
@@ -199,6 +236,8 @@ msgid ""
 "(only one thread at a time can acquire a lock --- that's their reason for "
 "existence)."
 msgstr ""
+"沒有任何可選引數時，此方法無條件地獲取鎖，必要時會等待直到被另一個執行緒釋放"
+"（一次只能有一個執行緒獲取鎖 --- 這正是鎖存在的原因）。"
 
 #: ../../library/_thread.rst:168
 msgid ""
@@ -207,6 +246,8 @@ msgid ""
 "without waiting, while if it is true, the lock is acquired unconditionally "
 "as above."
 msgstr ""
+"如果存在 *blocking* 引數，則根據其值執行操作：如果為 False，只有在可以立即獲"
+"取鎖而無需等待的情況下才獲取鎖，而如果為 True，則像上面一樣無條件地獲取鎖。"
 
 #: ../../library/_thread.rst:173
 msgid ""
@@ -215,42 +256,46 @@ msgid ""
 "*timeout* argument specifies an unbounded wait.  You cannot specify a "
 "*timeout* if *blocking* is false."
 msgstr ""
+"如果存在浮點數的 *timeout* 引數且為正值，則它指定了在回傳之前的最大等待時間"
+"（以秒為單位）。如果 *timeout* 引數為負值，則表示等待時間會無限期地等待。如"
+"果 *blocking* 為 False，則你無法指定 *timeout*。"
 
 #: ../../library/_thread.rst:178
 msgid ""
 "The return value is ``True`` if the lock is acquired successfully, ``False`` "
 "if not."
-msgstr ""
+msgstr "如果成功獲取鎖，回傳值為 ``True``，否則為 ``False``。"
 
 #: ../../library/_thread.rst:181
 msgid "The *timeout* parameter is new."
-msgstr ""
+msgstr "新增的 *timeout* 參數。"
 
 #: ../../library/_thread.rst:184
 msgid "Lock acquires can now be interrupted by signals on POSIX."
-msgstr ""
+msgstr "現在獲取鎖的操作可以被 POSIX 訊號中斷。"
 
 #: ../../library/_thread.rst:190
 msgid ""
 "Releases the lock.  The lock must have been acquired earlier, but not "
 "necessarily by the same thread."
-msgstr ""
+msgstr "釋放鎖。鎖必須先前被獲取，但不一定是由同一個執行緒獲取的。"
 
 #: ../../library/_thread.rst:196
 msgid ""
 "Return the status of the lock: ``True`` if it has been acquired by some "
 "thread, ``False`` if not."
 msgstr ""
+"回傳鎖的狀態：如果鎖已被某個執行緒獲取，則回傳 ``True``，否則回傳 ``False``。"
 
 #: ../../library/_thread.rst:199
 msgid ""
 "In addition to these methods, lock objects can also be used via the :keyword:"
 "`with` statement, e.g.::"
-msgstr ""
+msgstr "除了這些方法之外，鎖物件還可以透過 :keyword:`with` 語句來使用，例如："
 
 #: ../../library/_thread.rst:209
 msgid "**Caveats:**"
-msgstr ""
+msgstr "**注意事項：**"
 
 #: ../../library/_thread.rst:213
 msgid ""
@@ -258,12 +303,17 @@ msgid ""
 "exception will be received by an arbitrary thread.  (When the :mod:`signal` "
 "module is available, interrupts always go to the main thread.)"
 msgstr ""
+"執行緒與中斷的互動可能會有奇怪的情況：任何一個執行緒都有可能收到 :exc:"
+"`KeyboardInterrupt` 例外。（當 :mod:`signal` 模組可用時，中斷總是會進入主執行"
+"緒。）"
 
 #: ../../library/_thread.rst:217
 msgid ""
 "Calling :func:`sys.exit` or raising the :exc:`SystemExit` exception is "
 "equivalent to calling :func:`_thread.exit`."
 msgstr ""
+"呼叫 :func:`sys.exit` 函數或引發 :exc:`SystemExit` 例外等同於呼叫 :func:"
+"`_thread.exit` 函式。"
 
 #: ../../library/_thread.rst:220
 msgid ""
@@ -271,6 +321,8 @@ msgid ""
 "on a lock --- the :exc:`KeyboardInterrupt` exception will happen after the "
 "lock has been acquired."
 msgstr ""
+"無法在鎖的 :meth:`~threading.Lock.acquire` 方法上中斷執行， :exc:"
+"`KeyboardInterrupt` 例外會在鎖被獲取後發生。"
 
 #: ../../library/_thread.rst:224
 msgid ""
@@ -278,6 +330,9 @@ msgid ""
 "survive.  On most systems, they are killed without executing :keyword:"
 "`try` ... :keyword:`finally` clauses or executing object destructors."
 msgstr ""
+"當主執行緒退出時，其他執行緒是否保留是由系統決定的。在大多數系統上，它們將被"
+"終止，而不會執行 :keyword:`try` ... :keyword:`finally` 子句或執行物件的解構函"
+"式。"
 
 #: ../../library/_thread.rst:229
 msgid ""
@@ -285,30 +340,32 @@ msgid ""
 "that :keyword:`try` ... :keyword:`finally` clauses are honored), and the "
 "standard I/O files are not flushed."
 msgstr ""
+"當主執行緒退出時，它不會執行任何通常的清理操作（除非有 :keyword:`try` ... :"
+"keyword:`finally` 子句），並且標準 I/O 檔案不會被刷新。"
 
 #: ../../library/_thread.rst:7
 msgid "light-weight processes"
-msgstr ""
+msgstr "light-weight processes（輕量級行程）"
 
 #: ../../library/_thread.rst:7
 msgid "processes, light-weight"
-msgstr ""
+msgstr "processes, light-weight（行程，輕量級）"
 
 #: ../../library/_thread.rst:7
 msgid "binary semaphores"
-msgstr ""
+msgstr "binary semaphores（二進位號誌）"
 
 #: ../../library/_thread.rst:7
 msgid "semaphores, binary"
-msgstr ""
+msgstr "semaphores, binary（號誌，二進位）"
 
 #: ../../library/_thread.rst:22
 msgid "pthreads"
-msgstr ""
+msgstr "pthreads"
 
 #: ../../library/_thread.rst:22
 msgid "threads"
-msgstr ""
+msgstr "threads（執行緒）"
 
 #: ../../library/_thread.rst:22
 msgid "POSIX"