聪明‘’就是intelligent，‘’笨‘’就是stupid吗？

1 sharp机敏的

He is very sharp, a quick thinker and swift with repartee. 他很机敏、思维敏捷并且能机智应答。

2 blunt 直言不讳的

She is blunt about her personal life. 她对自己的私生活直言不讳。

3 has a loose screw 失魂落魄

Jason has had a screw loose ever since his girlfriend left him. 杰森在女朋友离开他后有些失魂落魄。

4 street smart(在艰难、危险环境或大城市)有巧妙生存能力的

He is street smart and is not afraid of this neighbourhood.

他有城市人的精明劲儿，不怕这儿附近的人。

5 on the ball 机灵

Someone who is on the ball is intelligent and able to do a good job.

6 knows the score 知道真相

Every newspaper picture editor knows the score. 任何一位报纸图片编辑都知道这个套路。

7 a smart cookie 一个聪明人

The boss thinks that guy is a smart cookie. 老板认为这小伙子很聪明。

8 sharp as a tack聪明机灵

Because the new salesman was as sharp as a tack, he was quickly promoted. 由于新业务员聪明机灵，他马上升官了。

9 tech-savvy 精通科技的

computer-savvy 精通电脑的

internet-savvy 精通互联网的

And more and more computer-savvy young people are skipping college to join the high-tech revolution as computer network engineers, Internet entrepreneurs, and gamedesigners.越来越多沉溺于计算机的年轻人不上大学，而作为计算机网络工程师、因特网创业者和游戏设计者，加入到高科技革命中。

10 slow迟钝的

He's the slowest in the class. 他是班里最迟钝的。