He's not exactly the sharpest knife in the drawer, is he?

他的脑子一点儿也不灵活，是不是？

《牛津词典》

Furniture and carpet retailers are among those reporting the sharpest annual decline in sales.

家具和地毯零售商们是在那些报告最大年销售下滑的商家之中。

《柯林斯英汉双解大词典》

Have you seen my spear? It's the sharpest in the world.

你瞧见我的矛了没有？它是世界上最锋利的矛了。

youdao

But Chinese exports fell almost 3% in December from a year earlier - the sharpest drop in at least 10 years.

VOA: special.2009.01.16

The first and the sharpest break with this common human experience came in ancient Greece.

最早与人类社会这个普遍传统,相悖且最为鲜明的例子就是古希腊

耶鲁公开课 - 古希腊历史简介课程节选

The article 'The sharpest rooms in Shanghai' was published in partnership with Lonely Planet.

BBC: The sharpest rooms in Shanghai

The sharpest writers I know making the case against passage are Mickey Kaus and David Frum.

FORBES: The Dream Act, Etc.

Mr. Levin, perhaps Apple's sharpest critic on Tuesday, volunteered that he uses an iPhone.

WSJ: Apple's Cook Defends Tax Practices as Proper