这本书有什么用途？
听诊器有什么用途？
这本书有什么用途？
智慧币有什么用途？
智慧币有什么用途？
热力图有什么用途？什么时候使用它比较有意义？
科学家们很长时间都没有发现炼油渣有什么用途，后来才发现能将它制成塑料。
For a long time, scientists could find little use for the material which remained after the Oil has been refined Later on they found that it could be turned into plastics.
我讲起有人问富兰克林热气球有什么用途的故事，富兰克林反问：一个新生的婴儿又有什么用途呢？
I then told him the story of someone's asking Franklin what was the use of a balloon, and his reply, 'what is the use of a new-born baby?
最后，也许这也是最重要的一点，无论是美国、还是其他国家，可能都存在这个问题，那就是经济繁荣的成果对我们有什么用途？
Finally, and perhaps most fundamentally, there will be the question in my country in others is: what is going to be the use of the fruits of prosperity?
最后，也许这也是最重要的一点，无论是美国、还是其他国家，可能都存在这个问题，那就是经济繁荣的成果对我们有什么用途？
Finally, and perhaps most fundamentally, there will be the question in my country in others is: what is going to be the use of the fruits of prosperity?
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