an iron hand in a velvet glove

• 外柔内刚

an iron hand in a velvet glove的用法和样例：

例句

1. He is one of those men who have an iron hand in a velvet glove.
   他是一个外柔内刚的人。
2. I believe in the iron hand in the velvet glove-that is,severity accompanied by politeness.
   我信奉外柔内刚，那就是既严厉又温和。