gravity stowing

例句：

1. 1. The weight of the earth is a mystery to us.
   地球的重量对我们来说是一个谜。
2. 2. The force of gravity pulls objects towards the center of the Earth.
   重力的力量将物体拉向地球的中心。
3. 3.Gravity plays a crucial role in the formation of planets and stars.
   重力在行星和恒星的形成中起着至关重要的作用。