1.
"When the dew came down on the tents at night, the manna came down with it."
夜间露水降在营中，吗哪也随着降下。
2.
To descend by means of a parachute.
跳伞，伞降用降落伞下降
3.
drawdown [groundwater]
水位下降〔地下水〕
4.
descent:The act or an instance of descending.
"下降,降落:下降的动作或实例."
5.
A downward movement.
下降，落下向下的运动
6.
The temperature is going down; The barometer is falling; Real estate prices are coming down.
温度正在下降；气压下降了；房地产价格正在下降。
7.
compared with the figure in 1992, it has been decreased by 55%, among which the number in the urban areas has been decreased by 74% and in the rural areas the number has been decreased by 51%.
比1992年下降55%，其中城市下降74%，农村下降51%；
8.
A falling inflection of the voice, as at the end of a sentence.
声音降落，降句调发音时下降的音调
9.
lagging edge
【电】(脉冲的)下降边
10.
The birth rate have fall to twelve per hundred.
出生率下降到12％。
11.
The earthworm population had declined by 70%.
蚯蚓数量下降70％。
12.
lower the sails, a flag, a window
落帆、 降旗、 放下窗
13.
capitulate on [ upon ] the condition that...
在...条件下投降
14.
A downward tendency, as in the price of a stock.
下降趋势如股票价格等的下降趋势
15.
A descent by stages or steps.
递减，下降一种逐级或逐步的递减，下降
16.
The Modified Steepest Descent Method──Best Point in Steepest Descent method
改进的最速下降法─最好点最速下降法
17.
a lowering of temperature below the freezing point
下降到冰点以下的温度
18.
The temperature fell to 26°below zero.
温度下降到零下26度。