如果你所处的状况是你不确定要做什么，那么你可以做自己知道要做的事情。
If you're in a situation where you're not sure what to do, act like you know what to do.
你可以告诉小孩他该做什么，但他并不一定都照你说的做。
You can tell a child what to do, but he doesn't always obey.
利用这套API你可以做很多有关搜索的事情，而且很方便。 Lucene能做什么？
Use this API you can do a lot of things related to search and easily.
利用这套API你可以做很多有关搜索的事情，而且很方便。 Lucene能做什么？
Use this API you can do a lot of things related to search and easily.
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