1.
A downward movement.
下降，落下向下的运动
2.
fall:To drop or come down freely under the influence of gravity.
落下:因重力作用而自由下降或下落
3.
To drop or come down freely under the influence of gravity.
落下因重力作用而自由下降或下落
4.
Rushing or falling headlong.
陡斜地冲下或落下的
5.
To fall from a higher to a lower place or position.
落下从较高地方或位置落到落低地方或位置
6.
Something, such as a trap door on a gallows, that is arranged to fall or be lowered.
下落板被设计降低或落下的东西，如绞刑架的下落板
7.
The distance through which something falls or drops.
落差物体落下通过的距离
8.
About five o'clock next morning there were a few drops of rain in the wind.
清晨五时许，疏疏落落下了几点雨。有风。
9.
Already the sun had slipped beyond the horizon.
太阳已经落下了地平线。
10.
and how her tears would fall like rain,
眼泪雨点般地落下来，
11.
The leaves whirled (round) as they fell.
树叶打着转飘落下来.
12.
The floor collapsed and they fell through.
地板坍了，他们跌落下去。
13.
Light up when the sun sets.
太阳落下时就点上灯。
14.
My parachute eased me groundward.
降落伞载着我徐徐下落。
15.
A condition of degradation or baseness.
堕落堕落或下贱的状态
16.
lower the sails, a flag, a window
落帆、 降旗、 放下窗
17.
raise/lower the undercarriage
收起[放下]起落架.
18.
To shed, peel, or come off in scales.Used of skin.
（皮肤）脱落，剥落鳞状脱落，剥落或掉下，用于皮肤