For any system to be useful and effective, it must also be convenient for you.
对于任何一个高效方便的文件归档系统来说，适合你是最重要的。
For you, everything must be practical and useful in order to merit your attention.
对你来说，一切都必须以务实和有用的，值得你的注意。
The mud manual that you are reading must be very useful.
你读的这本泥浆手册一定很有用。
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