“掉下”怎么读？

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汽车失去了控制,掉下了悬崖.The car went out of control and crashed over the cliff.他掉下悬崖, 摔得头破血流.When he fell from the cliff, he beat his brains out.幸运的是,他掉下时有灌木挡了一下.Luckily a bush broke his fall....