| 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。 |