他未能做好这件工作。
He fall down and come home with his clothes all muck up.
他跌了一跤，一身脏衣服回家。
Fall asleep immediately once he down to the bed.
他(身子)一挨到床便熟睡起来。
The idea occurred to him when he saw an apple fall down.
他看到一个苹果掉下来的时候，就有了这个想法。
我希望他不要摔下来。
He blew and blew, but the house didn't fall down.
他吹呀吹，可是吹不倒石头房子。
He blew and blew, but the house didn't fall down.
他吹呀吹，可是吹不倒石头房子。
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