2--Here is an idiom that uses this word: Off the Cuff
 
1--What could that mean? Let's find out.
 
2--I have to give a speech tomorrow, and I really don't have time to write it.
 
1--I will put together some notes, but I think it will be mostly off the cuff.
 
2--That shouldn't be a problem. You do really well when you don't have a script.
 
1--I think your best speeches are usually off the cuff. Really?
 
2--This idiom means to speech without much planning.
 
1--It comes from long ago when many men wore cuffs made of paper, which they would write on.
 
2--This let them speak by reading notes off their cuffs.
 
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注解：
 
1.wrist手腕
2.Off the Cuff即兴 
3.script脚本

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译文：

1--袖口是指在你手腕处、衬衫的最后那部分。
2--这有一个俚语就是使用的这个词：即兴
1--它的意思是什？让我们一起来看一看。
2--我明天有一个演讲，但是我真的没有时间去写。
1--我会把笔记整合，但是我想大部分是即兴的。
2--没什么问题的。没有演讲稿的时候，你也能做得很出色。
1--我觉得最好的演讲一般都是脱稿的。真的吗?
2--这个俚语是指没有太多安排的演讲。
1--很久以前它就出现了，当时许多男士的袖口都是纸做的，所以他们可以在上面写东西。
2--这就可以让他们在演讲时读袖口上的笔记。