| 单词 | on one's best ／good behavior |
| 释义 | on one's best ／good behavior behaving right行为规矩 *While his father was around，the boy was on his good behavior， but when the father left， the boy soon got into mischief．父亲在场时，这孩子规规矩矩，但父亲一走，他马上就调皮起来。 *The naughty boy is on his best behavior today．今天这个调皮鬼表现很好。 |
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