She jumped off the top board.

她从高层跳板上跳了下来。

《牛津词典》

He picked the nuts off the top of the cake.

他把蛋糕上面的果仁拿掉。

《牛津词典》

It was the best I could think of off the top of my head.

这是我能马上想出的最好办法。

《柯林斯英汉双解大词典》

His name was Arnold Parks. He caught another worker who had fallen off the top of the canyon.

VOA: special.2010.10.27

Are there other indicators or tricks or rules of thumb that just off the top of your head come to you as useful mechanisms for doings this as well?

当然还有没有其他的,一些暗示或者说技巧,或者规则之类有用的办法呢？

哈佛公开课 - 计算机科学课程节选

Alums with Nobel prizes? Oh, I don't... I can't think of any like, off the top of my head.

获得诺贝尔奖的校友吗？这个……我一时还想不出来。

知道约翰·纳什吗？ - SpeakingMax英语口语达人

Reporters call me directly and I have to answer them off the top of my head.

FORBES: Creating And Conveying Your Media Message -Media Training

As this happened, the US began pushing Europe off the top of the economic ladder.

BBC: Eurozone crisis: What it means for East and West

Buckingham says you should skim a little off the top once your investments are profitable.

FORBES: Roll Your Own Berkshire