For children, growing their own food is a powerful tool to increase their intake of the food.

对于孩子们来说，自己种植果蔬是增加他们的食物摄入量的一种有力的工具。

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A man who knows how to write a personal letter has a very powerful tool.

一个知道如何写私人信件的人有一个非常强大的工具。

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Questions are a powerful tool, especially when they encourage others to disclose information about themselves.

提问是一个有力的工具，尤其是当他们鼓励其他人说出自己的信息时。

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He also calls it the most powerful tool available in the race to meet the Millennium Development Goals by twenty fifteen.

VOA: special.2010.10.25

OK. So, what do I want you to take away from this? This idea of binary search is going to be a really powerful tool. And it has this property again, of chopping things into pieces.

从这里学到些什么？二分查找的思想,是一个非常有用的工具,我重复一遍，把问题拆成几部分来解决,那事实上，这里的增长率是多少？

麻省理工公开课 - 计算机科学及编程导论课程节选

It's really been a powerful tool in molecular biology because I might have a very small copy of a gene that I'm interested in and I can make enough copies that I can start to do something else with it.

这确实是分子生物学的一项利器,因为我可能只有,很少量的感兴趣的基因拷贝,而我可以马上制造出足够数量的复制品,能使我用作其他用途

耶鲁公开课 - 生物医学工程探索课程节选

Done correctly, networking is a powerful tool that will improve your job prospects.

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Social networking is an incredibly powerful tool with which one can grow their business.

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Smartphones have long been seen as a potentially powerful tool for shutting down identity theft.

FORBES: BlackBerry, Nokia Malware Aims To Defeat Banks' Security Scheme