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标题: 每天谚语 Necessity is the mother of invention。 [打印本页]

作者: kobe    时间: 2017-11-9 07:31     标题: 每天谚语 Necessity is the mother of invention。









Necessity is the mother of invention。










作者: kobe    时间: 2017-11-9 07:31




Necessity is the mother of invention。



需要是发明之母。










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