A fly can walk up a wall. It can walk upside down,too. But how does the fly do that?
A fly has six legs. It walks with three legs up and three legs down. Each leg has a little sticky pad on it, almost like a shoe. The pads can stick to the wall. So a fly can walk up a wall and it doesn’t fall.
- ❶ fly [flaɪ] n. 蝇；苍蝇
- ❷ upside [ˈʌpˌsaɪd] n.正面；上边；上部
- ❸ upside down adv.颠倒；倒转；翻转
- ❹ pad [pæd] n.爪垫；护垫；便笺[jiān]本；拍纸簿[bù,bó]
- ❺ sticky [ˈstɪki] pad [pæd] 黏 [nián] 性的爪垫
- ❻ stick [stɪk] to 黏 [nián] 附于
- ❼ fall [fɔl] v.下降；跌倒；落下；跌落
翻译：
苍蝇可以爬墙。 它也可以倒立行走。 但是苍蝇是怎么做到的呢？
苍蝇有六只脚。 它走路时三条腿向上，三条腿向下。 每条腿上都有一个小粘垫，几乎就像一只鞋子。 垫子可以粘在墙上。 所以一只苍蝇可以爬上一堵墙，它不会掉下来。