[专利] 发明创造

invention and creation的用法和样例：

例句

Invention and creation are patented.发明创造，享有专利。
We have not yet done much in the way of invention.我们在发明创造方面做的还不多。

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发表于:2018-11-27 / 阅读(1170) / 评论(0)

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