@@ -1174,7 +1174,7 @@ msgstr "（由 Antoine Pitrou 在 :issue:`13748` 中贡献。）"
11741174msgid ""
11751175":meth:`dict.setdefault` now does only one lookup for the given key, making "
11761176"it atomic when used with built-in types."
1177- msgstr ""
1177+ msgstr "现在 :meth:`dict.setdefault` 对给定的键将只执行一次查找，使其在配合内置类型使用时是原子化的。 "
11781178
11791179#: ../../whatsnew/3.3.rst:814
11801180msgid "(Contributed by Filip Gruszczyński in :issue:`13521`.)"
@@ -1184,15 +1184,15 @@ msgstr "（由 Filip Gruszczyński 在 :issue:`13521` 中贡献。）"
11841184msgid ""
11851185"The error messages produced when a function call does not match the function"
11861186" signature have been significantly improved."
1187- msgstr ""
1187+ msgstr "当函数调用与函数签名不匹配时产生的错误消息已获得大幅改进。 "
11881188
11891189#: ../../whatsnew/3.3.rst:819
11901190msgid "(Contributed by Benjamin Peterson.)"
11911191msgstr "（由 Benjamin Peterson 贡献。）"
11921192
11931193#: ../../whatsnew/3.3.rst:823
11941194msgid "A Finer-Grained Import Lock"
1195- msgstr ""
1195+ msgstr "更细粒度的导入锁 "
11961196
11971197#: ../../whatsnew/3.3.rst:825
11981198msgid ""
@@ -1202,6 +1202,8 @@ msgid ""
12021202" workarounds were sometimes employed, such as the "
12031203":c:func:`PyImport_ImportModuleNoBlock` C API function."
12041204msgstr ""
1205+ "之前版本的 CPython 是始终依赖于全局导入锁的。 这会导致预料之外的麻烦，比如当导入一个模块会触发代码在其他线程中执行作为附带影响导致的死锁。 "
1206+ "有时需要应用一些笨拙的绕过方式，比如 :c:func:`PyImport_ImportModuleNoBlock` C API 函数。"
12051207
12061208#: ../../whatsnew/3.3.rst:831
12071209msgid ""
@@ -1210,6 +1212,8 @@ msgid ""
12101212"the exposure of incompletely initialized modules), while eliminating the "
12111213"aforementioned annoyances."
12121214msgstr ""
1215+ "在 Python 3.3 中，导入一个模块会使用单独的模块级锁。 "
1216+ "这能正确地从多个线程序列化给定模块的导入操作（防止出现被不完整初始化的模块），同时消除之前提到的困扰。"
12131217
12141218#: ../../whatsnew/3.3.rst:836
12151219msgid "(Contributed by Antoine Pitrou in :issue:`9260`.)"