Lesson 15 - Off the top of one's head 英语最常见的720个地道表达法

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Off the top of one’s head

Meaning: If you say something off the top of your head, you say it immediately, without thinking carefully about it or checking the facts.

Examples：

He can list all the provincial capital cities off the top of his head.

他能不假思索地列出所有省会城市的名称。

A: How many people were at the party last night?

昨晚派对有多少人？

B: Just off the top of my head, I'd say there were about 50.

我脑子里大概算了一下，差不多有 50 个人吧。