Why should you use these, and how do they relate to use cases?

你为什么要使用这些，以及它们与用例有何关系？

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How do they pronounce words? What are the rhythmic structures of how they speak?

他们是怎么发音的？他们说话时的韵律结构是怎样的？

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But Chad Reissig says scientists do not know a lot about them and how they interact with each other and caffeine.

VOA: special.2009.07.22

How do they get that information? What is a star, if not just a giant gas bottle, containerless?

他们是怎样得到信息的？星星是什么？,如果不只是一个巨大的，空空的气体瓶呢？

麻省理工公开课 - 固态化学导论课程节选

How do they pronounce words? What are the rhythmic structures of how they speak?

他们是怎么发音的？他们说英语时的韵律结构是怎样的？

如果想提高英语水平 - SpeakingMax英语口语达人

And how do they decide where to eat in a city of 10, 000 restaurants?

BBC: Lonely Planet's top 10 ways to see Hong Kong

Another problem: How do they know that money causes meanness, and not the other way around?

FORBES: Study: More Money Makes Managers Meaner

So what are the benefits of this approach and how do they help resolve the debate?

FORBES: Active v. Passive Management: How to Get the Best of Both Worlds