We have a real hard-nosed boss.

　　我们老板真的很固执。

　　hard-nosed就是inflexible, a little bit stubborn.

　　-nosed在英语里很常见，描述一个人的时候很常用，比如说

　　The long-nosed guy is actually a spy.

　　那个长鼻子的家伙实际上是个间谍。