[po] auto sync

github-actions[bot] · github-actions[bot] · commit c88f637584e6 · 2020-08-30T14:28:18.000Z
diff --git a/library/sys.po b/library/sys.po
@@ -2117,6 +2117,10 @@ msgid ""
 "works. Per-line events may be disabled for a frame by setting "
 ":attr:`f_trace_lines` to :const:`False` on that frame."
 msgstr ""
+"表示解释器即将执行新一行代码或重新执行循环条件。局部跟踪函数将被调用，*arg* 为 "
+"``None``，其返回值将指定新的局部跟踪函数。关于其工作原理的详细说明，请参见 "
+":file:`Objects/lnotab_notes.txt`。要在该堆栈帧禁用每行触发事件，可以在堆栈帧上将 "
+":attr:`f_trace_lines` 设置为 :const:`False`。"
 
 #: ../../library/sys.rst:1325
 msgid ""
@@ -2125,6 +2129,8 @@ msgid ""
 " the event is caused by an exception being raised.  The trace function's "
 "return value is ignored."
 msgstr ""
+"表示某个函数（或别的代码块）即将返回。局部跟踪函数将被调用，*arg* 是即将返回的值，如果此次返回事件是由于抛出异常，*arg* 为 "
+"``None``。跟踪函数的返回值将被忽略。"
 
 #: ../../library/sys.rst:1333
 msgid "``'exception'``"
@@ -2136,6 +2142,8 @@ msgid ""
 "tuple ``(exception, value, traceback)``; the return value specifies the new "
 "local trace function."
 msgstr ""
+"表示发生了某个异常。局部跟踪函数将被调用，*arg* 是一个 ``(exception, value, traceback)`` "
+"元组，返回值将指定新的局部跟踪函数。"
 
 #: ../../library/sys.rst:1341
 msgid "``'opcode'``"
@@ -2149,12 +2157,15 @@ msgid ""
 "emitted by default: they must be explicitly requested by setting "
 ":attr:`f_trace_opcodes` to :const:`True` on the frame."
 msgstr ""
+"表示解释器即将执行一个新的操作码（操作码的详情请参阅 :mod:`dis` ）。局部跟踪函数将被调用，*arg* 为 "
+"``None``，其返回值将指定新的局部跟踪函数。每操作码触发事件默认情况下都不发出：必须在堆栈帧上将 :attr:`f_trace_opcodes` "
+"显式地设置为 :const:`True` 来请求这些事件。"
 
 #: ../../library/sys.rst:1343
 msgid ""
 "Note that as an exception is propagated down the chain of callers, an "
 "``'exception'`` event is generated at each level."
-msgstr ""
+msgstr "注意，由于异常是在链式调用中传播的，所以每一级都会产生一个 ``'exception'`` 事件。"
 
 #: ../../library/sys.rst:1346
 msgid ""
