Since the hello world example only has a single page, this file is empty here.
因为hello world示例只有一个简单的页面，因此该文档是空的。
The result is that after a crash the file is empty: both the old and the new data have been lost.
这就造成了系统崩溃之后文件变成空的：无论原来的还是新的数据都被丢失了。
Once this empty directory is created, we can mount the file system into it.
一旦创建了这个空目录，我们可以将文件系统装载到它。
If it is not present, you must create an empty file.
如果不存在，您就必须创建一个空文件。
When an entry is deleted, it leaves an empty hole in the file.
删除一个条目时，会在文件内留下一个空洞。
A new file is added to an empty solution.
空解决方案中添加了新文件。
A new file is added to an empty solution.
空解决方案中添加了新文件。
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