用英语习语如何描述人？华尔街英语外教教你两个习语——“Man up”、 “Cute as a Button”。如何用，请见下文：
Man up is a expression that has become more and more popular recently. It is used to tell somebody to be brave, or take control of a difficult situation. The phrase plays on peoples’ idea that a man should be strong, responsible and calm, so if a guy is scared to do something, or wants to run away from his responsibilities, his friends may tell him to ‘man up!’.
For example: Jim “I like this girl, but I am afraid to ask her on a date. Bob: “Why don’t you just man up and ask her out?”
There are many ways to describe someone who is attractive or appealing. If something or someone is pretty in a way that makes another happy or joyous, this is cute. It is often used to describe something young or child-like. For some reason, if something is really cute, we compare it to a button. This is simply an idiom.
“Have you seen Erica’s new baby? He’s only a few days old!”
“No, but everybody is talking about it. They all say he’s just cute as a button.”
要想描述某人很有吸引力或是很有魅力的（表达）方式有很多。如果某事物或者某人漂亮得让人高兴或是愉快，这就是可爱（cute）。Cute这个词通常用于描述一些年轻或者像孩子一样的事物。由于特定的原因，如果某物真的很可爱，我们可以将它和纽扣做比较。cute as a button就是一个习语。