美国发明家爱迪生。

Thomas Edison, American inventor.

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有所成就是人生唯一的真正乐趣。美国发明家爱迪生。T。

Achievement provides the only real pleasure in life. Thomas Edison, American inventor.

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我认为，在我们的短暂一生中，最好的贡献莫过于此了。美国发明家爱迪生。

I don "t know of any better service to offer for the short time we are in the world." (Thomas Edison, American inventor).

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