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- 跟他们讨论终止合同是没有用的。
It's no use to discuss the termination of contract with them.
- 蟾蜍外表丑陋，但很有用。
Toads have an ugly appearance but they are useful.
- 这本参考书对我有用处吗？
Is this reference book of any use to me?
- 这本参考书对我们的研究很有用。
This reference book is very useful to our study.
- 这本书可能有用，只是相当贵。
The book is likely to be useful, only it's rather expensive.
- 学习英语和德语等现代语言比学习拉丁语更为有用。
It's more useful to learn modern languages, such as English and German, than Latin.
- 胆汁的分泌对我们的身体很有用处。
The secretion of bile is useful for our bodies.
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