[po] auto sync bot

zhsj · zhsj · commit d8f706a4e1bf · 2018-12-01T12:24:57.000+08:00
diff --git a/reference/datamodel.po b/reference/datamodel.po
@@ -3101,6 +3101,7 @@ msgid ""
 "iteration.  It should return a new iterator object that iterates over all "
 "the objects in the container in reverse order."
 msgstr ""
+"此方法（如果存在）会被 :func:`reversed` 内置函数调用以实现逆向迭代。它应当返回一个新的以逆序逐个迭代容器内所有对象的迭代器对象。"
 
 #: ../../reference/datamodel.rst:2222
 msgid ""
@@ -3110,6 +3111,9 @@ msgid ""
 "only provide :meth:`__reversed__` if they can provide an implementation that"
 " is more efficient than the one provided by :func:`reversed`."
 msgstr ""
+"如果未提供 :meth:`__reversed__` 方法，则 :func:`reversed` 内置函数将回退到使用序列协议 "
+"(:meth:`__len__` 和 :meth:`__getitem__`)。支持序列协议的对象应当仅在能够提供比 :func:`reversed` "
+"所提供的实现更高效的实现时才提供 :meth:`__reversed__` 方法。"
 
 #: ../../reference/datamodel.rst:2229
 msgid ""
