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。
