地心引力是什么意思请简单的说一说英语？
编辑：自学文库
时间：2024年03月09日
Gravity is a natural force that pulls objects towards each other. It is what keeps us grounded on the Earth and influences the movement of celestial bodies. Gravity is determined by the mass and distance between two objects. The larger the mass and the closer the objects, the stronger the gravitational force. Without gravity, everything would float away into space. This force plays a crucial role in maintaining the balance and stability of the universe.