| gravity | |
| 级别 | 第4级 |
| 音标 | [ ˈgrævəti ] |
| 解释 | n.重力，引力，地心引力 |
| 英英释义 | the force which attracts objects towards one another, especially the force that makes things fall to the ground |
| 发音 |  |
| 例句 |
1. An apple falls down because of gravity. 由于重力的关系，苹果往下掉。 2. The stone rolled down the mountain by gravity. 这块石头由于重力作用而滚下山。 |
