| 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. | The swing is a pendulum with a single natural frequency depending on its length .
秋千是只有一个固有频率的摆，此频率决定于它的长度。 |
| 3. | There was a covered piazza behind the house furnished with a swing which was a source of tremulous interest .
屋后是一条有屋顶的走廓，走廊上有一个秋千架，这是惊险有趣的玩意儿。 |
| 4. | Have taken old inside of me . so much to lose so many kinds
你说你的爱像一座秋千 |
| 5. | Sitting on the swing is like flying in the sky
坐在秋千上就好像在天空中飞翔。 |
| 6. | I liked to play on a swing at the lake rending park
我爱去人定湖公园荡秋千。 |
| 7. | 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。 |
| 8. | The children are playing on the swings in the park
孩子们正在公园里荡秋千。 |
| 9. | The children are playing on the swings in the park
孩子们在公园里荡秋千。 |
| 10. | 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。 |
