It's not wise to steal the show from your superior.

　　抢上司风头是不明智的。

　　steal the show直译过来就是：“偷走炫耀，偷走这个表演”，这个俚语其实是用来形容在表演时配角抢了主角的风头，引申为“出风头，抢镜头”。因此，当美国人说"It's not wise to steal the show from your superior."时，他/她要表达的意思就是:"It is not smart to cut a smart figure in front of the boss."、"It is unwise to push yourself forward in front of your boss."。

　　情景对白：

　　Terry: I feel so happy that I've successfully dealt with those clients.

　　泰瑞：真高兴，我今天成功应付了那些客户。

　　Benjamin: But have you noticed your boss's embarrassment? It's not wise to steal the show from your superior.

　　本杰明：但是你注意到你老板的窘态没？抢上司的风头是不明智的。

　　搭配句积累：

　　①You'll put him in a very awkward position.

　　你会令他处境难堪的。

　　②You should learn to save his face instead.

　　你应当学着给他留面子。

　　③After all there are so many colleagues on the scene.

　　毕竟当时有那么多同事在场。

　　④Sorry, I cann't be aware of it.

　　抱歉，我没有注意到这个问题。

　　单词：

　　1. cut a smart figure 出风头

　　The couple cut a smart figure.

　　那一对夫妇很出风头。

　　2. on the scene 出现，在场

　　Reporters were soon on the scene after the accident.

　　那事故发生後不久记者就都赶到了现场。

　　The thief was caught by the police on the scene.

　　小偷被警察当场抓住。