invention既是可数名词又是不可数名词。不可数名词翻译为：发明，创造、创造力，发明才能。可数名词翻译为：发明物，创作品。
invention双语例句
1、It's been a tricky business marketing his new invention
推广他的新发明一直是件棘手的事情。
2、In these and several other respects, there are many inventions and exaggerations
在这些方面和其他几个方面都存在许多捏造与夸张之处。
3、The spinning wheel was a Chinese invention.
纺车是中国人的发明。
4、The story was certainly a favourite one, but it was undoubtedly pure invention.
这个故事当然特别受欢迎，但它无疑纯属虚构。
5、The invention has been patented by the university.
那项发明已被那所大学申请了专利。
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