ADJ-GRADED 彬彬有礼的;(尤指儿童)规规矩矩的 If you describe someone, especially a child, as well-behaved, you mean that they behave in a way that adults generally like and think is correct. 彬彬有礼的;(尤指儿童)规规矩矩的
...well-behaved little boys.
乖巧的小男孩们
The troops have been remarkably well-behaved so far.