每日短语讲解 第1217期:上上下下
日期:2019-05-12
今日短语:
up and down.
上上下下,来来回回
例句:
He ran up and down the steps several times to get some exercise.
他上上下下的跑了几回楼梯来做点运动。
The bear is walking up and down in the cage.
那只熊在笼子里来回走动着。