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- You must watch your step so as not to fall down. 你必须留心脚下才不会跌下去。
- I heard someone fall down the stairway. 我听到有人摔下楼梯。
- He fall down the stairs, landing in a heap at the bottom. 他从楼梯上摔下来，直跌到楼梯底部滚成一团。
- power fall down 功率跌落
- He fell down the stairs and was all black and blue. 他从楼梯跌下而青一块紫一块了。
- The old woman fell down a flight of stairs. 那位老太太从一段楼梯上摔了下来。
- The toddler tried to walk but kept falling down. 那小孩学著走路但老是跌跤。
- How was it possible to fall down from the third floor without being hurt? 从三楼掉下而没有受伤，这怎么可能呢？
- The worker fell down from the scaffold. 那个工人从脚手架掉了下来。
- A boy has fallen down and hurt himself. 一个男孩子摔下来跌伤了。
- I'm afraid the blue sky will fall down on me. 我害怕蓝天落下来砸在我的身上。
- The climber fell down a cleft in the rocks. 爬山者跌入岩石的裂缝里。
- I should fall down and die in the woods. 我宁可倒下来死在森林里了。
- He fell down and broke his ankle. 他跌断了脚踝。
- He heard a screech of brakes and then fell down. 他听到汽车刹车发出的尖锐的声音，然后就摔倒了。
- The beggar fell down in a swoon from sheer hunger. 那个穷人饿得晕倒了。
- She fell down and grazed her knee. 她摔倒在地，碰破了膝盖。
- Grab the hold or you will fall down! 抓紧，不然你会掉下去的！
- The ceiling of this room is about to fall down. 这间房的天花板快要塌了。
- If she does not mind the step,she'll fall down. 如果她不注意台阶，她就会摔倒。
