We must make sure that this meeting doesn't lap over into lunchtime,because we have other arrangements.一定不要让这个会延长到午餐时间，因为我们有其他安排。When laying the roof,make sure that the shingles lap over each other.铺屋顶时，一定要让木瓦重叠排放。Put the shingles on the roof so that they lap over each other.将木瓦重叠排放在屋顶上。The tiles on the roof lap over each other.屋顶上的瓦片互相搭接。