Merge pull request mongodb#440 from flybywind/patch-1

Update write-concern.po

Author: tjworks

locale/zh/LC_MESSAGES/reference/write-concern.po

@@ -19,8 +19,8 @@ msgstr "安全写级别参考"
 msgid ""
 ":doc:`Write concern </core/write-concern>` describes the guarantee that "
 "MongoDB provides when reporting on the success of a write operation."
-msgstr ":doc:`安全写级别 </core/write-concern>` 描述了 MongoDB 在报告一个写"
-"操作的成功时提供的保障。"
+msgstr ":doc:`安全写级别 </core/write-concern>` 保证了 MongoDB 在一个写"
+"操作成功时能给用户发报告。"
 
 #: ../source/reference/write-concern.txt:13
 msgid ""
@@ -43,24 +43,24 @@ msgid ""
 "commits these modifications to disk, regardless of write concern level or "
 "journaling configuration. As a result, applications may observe two classes "
 "of behaviors:"
-msgstr "若无视安全写级别或者日志配置，MongoDB 允许客户端读取未保存到修改到硬盘"
-"上的写入或者修改的文档。其结果是应用可能会观测到两类行为："
+msgstr "不管安全写级别或者日志配置如何，MongoDB都允许客户端读取那些插入或者修改的文档，"
+"尽管它们还未commit到硬盘。其结果是应用可能会观测到两类行为："
 
 #: ../source/includes/fact-write-concern-read-uncommitted.rst:6
 msgid ""
 "For systems with multiple concurrent readers and writers, MongoDB will allow"
 " clients to read the results of a write operation before the write operation"
 " returns."
-msgstr "对于有着多病发的读和写的系统来，MongoDB 将允许客户端在一个写操作返回之前"
+msgstr "对于有着读写多并发的系统来说，MongoDB 将允许客户端在一个写操作返回之前"
 "读取它的结果。"
 
 #: ../source/includes/fact-write-concern-read-uncommitted.rst:10
 msgid ""
 "If the :program:`mongod` terminates before the journal commits, even if a "
 "write returns successfully, queries may have read data that will not exist "
 "after the :program:`mongod` restarts."
-msgstr "如果在日志提交之前 :program:`mongod` 中断了，即使写操作成功返回了，"
-"在 :program:`mongod` 重起之后，查询也可能已经读取了不存在的数据。"
+msgstr "即使写操作成功返回了，如果在文档提交(commit)之前 :program:`mongod` 中断了，"
+"在 :program:`mongod` 重起之后，也可能查询到这些不存在的数据。"
 
 #: ../source/includes/fact-write-concern-read-uncommitted.rst:14
 msgid ""
@@ -69,7 +69,7 @@ msgid ""
 " isolation: clients never see documents in intermediate states. For multi-"
 "document operations, MongoDB does not provide any multi-document "
 "transactions or isolation."
-msgstr "其他数据库系统将这些隔离语义定义为 *脏读* 。对于所有的插入和更新，"
+msgstr "其他数据库系统将这些隔离语义定义为 *脏读(read uncommitted)* 。对于所有的插入和更新，"
 "MongoDB 原子地修每一个文档；客户端绝对不会遇到中间状态的文档。对于多文档操作，"
 "MongoDB 不提供任何多文档事物或隔离。"