趁便: when it is convenient; at one's convenience 短语和例子你回去的时候, 趁便给我带个口信。 when you go back, would you take a message for me? 我在回来的路上趁便去他家看了看。 i dropped in on him on my way home
回来: 回来return; come back; be back; go back; turn one's steps back; on one's returm from; put sth. back 短语和例子我一会儿就回来。 i'll be back in a minute. 他在一星期左右以后回来。 he will return in a week or so. 她们刚旅行
