If you make frequent archival backups, eXist is unlikely to do anything that makes the data irretrievable.
如果您经常做归档备份，那么eXist的数据就不可能变得不可检索。
In fact, if conflicting changes do exist, CVS will not allow you to check them in.
事实上，如果存在冲突更改，CVS不会允许您检查它们。
The examples in this article have been relatively complex, as compared with what you will have to do if you ever want to implement the other, simpler test design patterns that exist.
与您曾想要实现的其他更简单的测试设计模式要做的事情相比，本文中的实例相当复杂。
It USES the DROP procedure command on the DB2 logging stored procedures, and if they do not yet exist in the database, you will see the error message above.
它对DB 2日志存储过程执行dropPROCEDURE命令，如果在数据库中不存在日志存储过程，就会看到上面的错误。
If you find this argument convincing, what it's an argument for is the claim that even if souls do exist, they may not be the key to personal identity.
如果你信服这个观点，我们要证明的是，就算灵魂真的存在，也不是人格同一性的关键。
In the previous example, of course, what you want to do is change to the directory, or create it and then change to that directory if it doesn't already exist. You can write that in one line as.
当然，在前一个例子中，所希望做的是更改到指定目录，或者如果不存在此目录则进行创建，然后再更改到此目录。
If they do exist, you have the option to have the Service Registry automatically create a relationship between the documents, or you can also choose to load new version of the dependent document.
如果存在，可以选择让ServiceRegistry在文档之间自动创建一个关系，也可以选择加载新版本的依赖文档。
If there exist a person like this in your life, do cherish! Because you really begin to fall in love with him, although you did not know.
如果在你的生活中有这样的人存在，千万不要放弃他，因为也许你还不知道，你真的爱上他了！
Questioner: I do not understand how it is possible to regard a dream in the way you are describing it. If it has no significance, why does it exist?
发问者：我不知道怎么可能以你描述的方式来看待梦。如果梦没有意义，那它为什么要存在？
Someone once asked me, if suddenly the need for your work among the poorest of the poor ceased to exist, what would you do with the rest of your life?
有人问我，如果对你在穷人的穷人中工作的需求突然停止了，你的余生将怎样度过？
Hindrances and difficulties do exist, but if you are optimistic, then there are only episodes on your long way to the throne of success;
障碍和困难确实存在，但如果你是乐观的，那么只有漫长道路上的小插曲的宝座，成功；
"I'm sorry", said the HR manager. "If you don't have an email, that means you do not exist."
“我很抱歉，”人事经理说：“如果你没有邮箱，那就意味着你不能生存，一个不能生存的人当然不能。”
If you want to use default preferences for R2009a, and do not want MATLAB to migrate preferences from R2008b, the R2009a preferences directory must exist but be empty when you start MATLAB.
如果你想使用R 2009a系统默认目录，不想MATLAB从R2008 b中移动目录，那么R 2009a的参数目录必须已经被创建，而且当MATLAB被启动的时候目录是空的。
If you want to use default preferences for R2009a, and do not want MATLAB to migrate preferences from R2008b, the R2009a preferences directory must exist but be empty when you start MATLAB.
如果你想使用R 2009a系统默认目录，不想MATLAB从R2008 b中移动目录，那么R 2009a的参数目录必须已经被创建，而且当MATLAB被启动的时候目录是空的。
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