18的英文为eighteen

用法例句：

该冠军领先十八秒。

The champion is leading by eighteen seconds.

年满十八岁者有选举权。

Eighteen-year-olds qualify to vote.

一个十八岁的人通常是不会老惦著养老金的！

A pension is not usually one of the preoccupations of an eighteen year-old!

我的女儿十八岁了，已经长成为美丽的淑女。

My daughter is eighteen years old and has grown into a beautiful lady.