十八的

She dolled herself up as though she has been a girl of eighteen.

她打扮得漂漂亮亮, 像个十八岁的女孩子。

The man who is a pessimist before forty-eight knows too much; the man who is an optimist after forty-eight knows too little.

未逾四十八岁的悲观主义者，是知道得太多人；而年逾四十八岁的乐观主义者，是知道得太少人。