| 1. | A common example of mechanical resonance is provided by pushing a swing .
荡秋千，是熟知的机械共振的例子。 |
| 2. | I liked to play on a swing at the lake rending park
我爱去人定湖公园荡秋千。 |
| 3. | The boy swung on the rope tied to a tree
这个男孩坐在一根拴在树上的绳子上荡秋千。 |
| 4. | The children are playing on the swings in the park
孩子们正在公园里荡秋千。 |
| 5. | The children are playing on the swings in the park
孩子们在公园里荡秋千。 |
| 6. | He climbed to the treetop , ate the apples
男孩会爬上树干，抓着树枝荡秋千，吃吃苹果。 |
| 7. | The monkey jumps to where it can swing
猴子喜欢跳到可以荡秋千的地方。 |
| 8. | He just stood there watching the children riding on the swing
他只是站在那里看孩子们荡秋千。 |
| 9. | - sure . you want my swing ? - no
-当然记得，你要玩荡秋千吗？ -不要 |
| 10. | Monkey bar swingin ' ! monkey bar swingin '
猴子荡秋千猴子荡秋千 |
