秋千

• 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。
• 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。
• 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。
• Have taken old inside of me . so much to lose so many kinds
  你说你的爱像一座秋千
• Sitting on the swing is like flying in the sky
  坐在秋千上就好像在天空中飞翔。
• I liked to play on a swing at the lake rending park
  我爱去人定湖公园荡秋千。
• 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。
• The children are playing on the swings in the park
  孩子们正在公园里荡秋千。
• The children are playing on the swings in the park
  孩子们在公园里荡秋千。
• 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。