下降的英文：
decline
drop
fall
go down
decrease
way down
A downward trend; a downturn.
下降趋势；下降（衰落）。
a descent of temperature
温度的下降
The river is lowering.
河水在下降。
The sag in automobile sales
汽车销售量的下降
The census revealed a declining birth rate.
人口普查结果表明出生率在下降。
Government revenues fell dramatically.
政府财政收入大幅下降。
The number of people going to the cinema seems to dwindle steadily.
看电影的人数似乎在逐渐下降。
The news sent prices into a spin.
那消息使物价急遽下降。
rate lower; lower in value or esteem.
降低事物的等级；让事物的价值或声望下降。
The company was precipitated into ruin when the exchange rate dropped.
汇率下降时,公司一下子破了产。
n. 下降；减少，衰退，衰落，最后部分；晚年，倾斜
v. 下降，下跌；减少；倾斜；婉拒；使降低，使变格
sink into a decline
开始衰落，衰弱下去，体力衰退
The population is on the decline.
人口在减少。
The decline of literature indicates the decline of a nation.
文学的衰落表明一个民族的衰落。
v. 落下；降低；垂下；停止；终止；放弃；与…断绝联系
n. 落差；球状糖果；珠，滴；少量
A small amount of liquid;a drop.
少量液体；一滴
low-velocity drop
低速度空投
high velocity drop
高速度空投
v. 落下；倒塌；摔倒；下降；减弱；阵亡
n. 摔倒；下降；秋天；垮台；陷落；瀑布
adj. 秋天的
Sleet is falling.
天上下起了冰雹。
fall into disfavour
失宠失众望
We observed the barometer fall. [The barometer was observed to fall.]
我们看见晴雨表下降。