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摔倒是fall还是fell donw ？为了直观的对比，我们分别把各自的含义了解一下：fallv.落下；下落；掉落；跌落；突然倒下；跌倒；倒塌；下垂；低垂n.落下；下落；跌落；掉落；(雪、岩石等的)降落；发生；秋天1.Totally exhausted, he tore his clothes off and fell into bed他疲惫至极，扯下衣服，一头倒在床上。柯林斯高阶英汉双解学习词典2.Output will fall by 6%产量将减少6%fell down(向下游)流下；〔美俚〕失败；跌倒；同“fall”1.house fell down.房子倒塌了。2.He fell down and injured himself.他跌伤了。相比之下，突然的摔倒用fell down更合适
