英 [ˈdrɒp ɒf] 美 [ˈdrɑːp ɔːf]
n. 急下降
drop-off //
可数名词 A drop-off in something such as sales or orders is a decrease in them. (销售或订单等的)下降
...a sharp drop-off in orders from Asia.
...来自亚洲订单的一次大幅降低。
a noticeable deterioration in performance or quality
a drop-off in attendance
同义词： slump / slack / falloff / falling off
fall or diminish
同义词： drop off
change from a waking to a sleeping state
同义词： fall asleep / dope off / flake out / drift off / nod off / drop off / doze off / drowse off
retreat
同义词： fall back / lose / drop off / fall behind / recede
... up to it能做…；处理（对付）… drop-off放下 red-carpet treatment隆重接待 ...
I often see them looking at their phones when getting off the bus or at parents' drop-off, they can't use their own "screens" at school.
我经常看到他们在下公交或在父母开车送到学校下车的时候看手机，他们在学校不能使用自己的“屏幕”。
In addition, there is a household hazardous waste drop-off station for chemicals (paints, pesticides, other chemicals) that are banned from the landfill.
此外，还有一个家庭危险废物丢弃站，存放禁止掩埋的化学品（油漆、杀虫剂和其他化学品）。
But as I approached the steep drop-off, I stopped and froze.
但是当我接近险峻的临界点时，我停下了，木立不动。
By 2012,they hope to set up a network of pick-up and drop-off locations for rented bicycles throughout New York City.
VOA : standard.2010.01.31
How far along do I have to go drop off a - c when I have slope -2b?
斜率-2b的线还要经过哪个横坐标呢
博弈论课程节选 : 耶鲁公开课
It was late 2008 and the economy was faltering and all businesses were seeing a drop-off.
Bloustein School of Planning and Public Policy at Rutgers, speaking of northern New Jersey's population drop-off.
Executives attribute the drop-off to rising jet fuel prices, combined with declining air travel.
CNN: Delta cutting capacity, blames rising fuel prices, H1N1 virus