n. (physics) the force of attraction between all masses in the universe; especially the attraction of the earth's mass for bodies near its surface
n. a solemn and dignified feeling
n. 地心引力, 重力
[化] 重力
1. Gravity keeps us on the ground.
重力让我们保持在地面上。
2. The apple fell from the tree because of gravity.
苹果因为重力从树上掉了下来。
3. Without gravity, we would float in space.
如果没有重力，我们会在太空中漂浮。