英 美 v.跌倒(证明是不会令人满意的；失败)
fallen down的用法和例句：
例句
The boy has fallen down [off a ladder ]and hurt himself.
这孩子[从梯子上]摔下来，摔伤了。A boy has fallen down and hurt himself.
一个男孩子摔下来跌伤了。I was black and blue after I had fallen down the stairs.
我从楼梯上摔下来，摔得青一块紫一块的。His plan has fallen down.
他的计划已经失败了。fallen down的相关资料：
临近单词
fall
Fallay