adj.未预备的,即席的;
例句:
He is good at giving an entertaining speech completely off the cuff.
他擅长发表即度的娱乐演说.
This isn't the kind of question that one can answer off the cuff.
这可能不是那种可以当场答复的问题.
I'm afraid I can't answer your question off the cuff.
对不起,我不能毫无准备地回答你的问题.