a reduction or fall 下降: 减少或下降Sales suffered a 53 per cent drop-off. 销售额下降了53%。 - drop-off in something
What has caused the drop-off in performance? 是什么导致了性能下降?
the action of stopping your car so that somebody can get out; the action of delivering somebody/something to a place 落客: 停止您的汽车以便有人下车的动作;将某人/某物运送到某个地方的动作The area outside the airport terminal is for pickups and drop-offs only. 机场候机楼外的区域仅供上落客。 The road is busy with parents doing school drop-offs. 路上都是家长在忙着接送孩子。 Drop-offs of food donations are welcome between 8 and 3. 8点到3点之间欢迎捐赠食物。 The kidnappers told them to bring the money to a drop-off point. 绑匪告诉他们把钱带到一个卸货点。
- (North American English)
a very steep slope downwards 下降: 向下非常陡峭的斜坡Be careful when going into the lake as there's a steep drop-off. 入湖时要小心,因为有一个陡坡。 a path with sheer drop-offs to either side 两边都有陡坡的小路