If they do, then they cannot exist, simple as that.
如果会导致矛盾，那么它们就不能存在了，就这么简单。
If these files already exist, make backups before you continue with this exercise.
如果这些文件已经存在，在您继续这个练习之前请进行备份。
If one does not exist, the container supplies one.
如果不存在，则容器提供一个事务。
If they exist, make a point of going.
如果它们存在，做一个去点。
And, we say that a function is differentiable if these things exist.
我们说一个函数是可微的，如果这些偏导数存在。
If god does not exist, Kirilov is god.
如果上帝不存在，基里洛夫就是神明。
You need to create this file if it does not exist.
如果这个文件不存在，就需要创建它。
If they exist, each string would be as thin as a proton, but incredibly dense.
如果宇宙弦存在，每根弦都像质子一样小，密度却极大。
A report can be generated to see if any major issues exist.
可以生成一份报告来查看是否存在任何重大问题。
Lies only exist if we believe in them.
谎言只有我们愿意相信，它才会存在。
If the unit does not exist, put it into the set.
如果单元尚未存在的话，那么您可以将其置于系列之中。
If it does not exist, just accept the default value to create it.
如果不存在，只需要接受默认值就可以创建。
It merely describes what one would be like if it were to exist.
它只描述了如果文档存在，那它会是怎么样的。
If doesn't exist or is NULL, set to and return.
如果不存在或者是NULL，就把设置为并返回。
If doesn't exist, set to and return.
如果不存在，就把设置为并返回。
If aliens exist, where are they?
如果外星人存在，他们会在哪里呢？
In addition, the release manager also establish what, if any, dependencies exist between projects.
此外，发布管理者还要确定项目之间存在什么样的依赖关系。
如果不存在，就返回。
The next unit of water might not even exist if we cannot get smart enough to use our single supply of water well.
如果我们不能有效使用我们仅有的水资源的话，那么下一个单元的水将不复存在。
So, if it didn’t exist already how was it made later?
所以，如果最开始钱并不已经存在，那后来是怎么被弄出来的？
If these people exist, we will not be able to afford them.
即使存在这样的人，我们也负担不起。
Dear Sainte eloise, if you exist, please send me some money.
亲爱的爱洛伊丝，您存在的话，请给我送点钱。
The next block creates the backup directory if it does not exist.
下一个块在备份目录不存在时创建该目录。
So, if it didn't exist already how was it made later?
所以，如果最开始钱并不已经存在，那后来是怎么被弄出来的？
Or again, you often doubt if you really exist.
还有，你会经常怀疑自己是否真的存在。
If the letters didn't exist, they ought to exist, so we'll write them.
即使找不到这些书信了，它们也应该存在过，那么我们来写吧。
That's good advice, even if these approaches didn't exist.
即使不存在这些方法，这也是一个很好的建议。
That's good advice, even if these approaches didn't exist.
即使不存在这些方法，这也是一个很好的建议。
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