young at heart
人老心
不老
例句与用法：
And there are lively pensioners so stimulated by everything going on around them that they'll be young at heart for ever.
有些拿养老金的人十分快活，他们对周围发生的一切事都是兴致昂然，所以他们年龄虽大，心却永无是年轻的。
Mr Lawson is nearly eighty, but he's still young at heart and interested in everything we do.
劳森先生近80岁了，但他仍然童心犹在，对我们所做的每一件事都感兴趣。
词形变化：