Apply suggestions from code review

Author: mattwang44

library/weakref.po

@@ -112,7 +112,7 @@ msgid ""
 msgstr ""
 ":class:`finalize` 提供了一種直接的方法來註冊在物件被垃圾回收時呼叫的清理函"
 "式。這比在原始弱參照上設定回呼函式更容易使用，因為模組在物件被回收前會自動確"
-"保最終化器(finalizer) 保持存活。"
+"保最終化器 (finalizer) 保持存活。"
 
 #: ../../library/weakref.rst:63
 msgid ""
@@ -614,7 +614,7 @@ msgstr ""
 msgid ""
 "The finalizer can be called directly as well.  However the finalizer will "
 "invoke the callback at most once."
-msgstr "最終化器也可以直接被呼叫。然而，最終化器最多會調用回乎一次。"
+msgstr "最終化器也可以直接被呼叫。然而，最終化器最多會調用回呼一次。"
 
 #: ../../library/weakref.rst:497
 msgid ""