| 词汇 | 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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