For example:
Leaves fall like a waterfall: they fall to the ground under the action of gravity.
And I watch the long river always roll forward: the river flows to low places under the action of gravity.
Qian Fan passed by the sinking ship: a description of relative motion, because his own ship was not moving, and the ship next to him was moving relative to himself.
Ask how much sorrow you can have, just like a river flowing eastward: in China, the east is lower than the west, and the river flows downwards under the action of gravity. . (Physics+Geography)
At this time, because the moon is far from the earth, the range of moonlight irradiation is large. (Physics+Geography)
The sound of reading in the wind and rain, the sound in the ear: 1, the spread of sound will not interfere with each other; 2. Sound can spread around obstacles.
Even the sea level is in the spring tide, and the bright moon on the sea is born in the tide: the previous sentence means that due to the gravity of the earth, the water levels of rivers connecting the sea are at the same height as the sea level.