XSLT is useful not only for publishing Web sites, but also for transforming or manipulating XML documents.

XSLT不仅对发布网站有用，而且对转换或操作XML文档也很有用。

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Tags are useful not just for synchronizing data transfers, but also for checking on the status of transfers.

标签不但对于同步数据传输非常有用，而且对于检查传输状态也非常有用。

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Relationship building is useful not only in the business world but also when you are trying to meet new people.

人际构建不仅在商业世界中大有用处而且会让在尝试结交新朋友时游刃有余。

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Babe was very useful. For example, Paul had trouble removing trees along a road that was not straight.

VOA: special.2009.01.24

It appears to be useful in that way but I imagine it does more compelling things these days but I have not seen it myself.

那样看起来仿佛比较有效果,但我想这些天它非常引人注目,只是我自己没看到而已。

哈佛公开课 - 计算机科学课程节选

You will find this pattern very useful anytime you're not feeling happy about something and you want to express yourself.

你会发现，当你因为什么事感到低落，你想表达自己的感觉时，这个句型特别有用。

I get so upset 课堂 - SpeakingMax英语口语达人

This is a compact and stylish camera, filled with features that are useful not only for events, but for everyday snapshots as well.

ENGADGET: Olympus expands its point-and-shoot offerings with Stylus VH-410 and VH-515

These networks are too cheap and useful not to become mandatory.

FORBES: Magazine Article

But at least this is a result of a thought-out policy, thought-out approach as to what is useful or not useful to the United States of America.

CNN: Russian president denies Putin has all the power