| 词组 | be on your best behaviour |
| 释义 | Idiom be on your best behaviourbe on (your) best behaviour British & Australian, American & Australian to behave very well, usually because you are in an important or formal situation.Now children, I want you all to be on your best behaviour when grandma arrives. be on (one's) best behaviorTo be very polite or exercise exceptionally good manners. Primarily heard in US. Now, you kids must be on your best behavior for your Auntie this weekend! Good morning, class. I hope everyone was on their best behavior for the substitute teacher yesterday. |
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