The zipper ia a wonderful invention.

拉链是一项了不起的发明。

Time banks are a wonderful invention.

时间银行是一项出色的发明。

The diesel car was a wonderful invention.

柴油汽车是一项很好的发明。

Fax machines were a wonderful invention at the time.

传真机在当时是一项了不起的发明。