invention可数吗

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。