ins and outs
例句
用作名词(n.)
- I know all the ins and outs of our school building.我知道我们教学大楼的一切情况。
- The driver knew the ins and outs of the road.司机对这条路的一弯一拐，了如指掌。
- I don't know the ins and outs of the matter.我不知道这件事的来龙去脉。