1、80的英语单词是eighty。

2、She was over eighty。她年过八十。

3、He stands one metre and eighty。他身高一米八十。

4、Eighty divided by four equals twenty。八十除以四等于二十。

5、He is over eighty, but he still dodders along。他年过八十，但仍蹒跚而行。