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Accident 3: A fall
事故3:跌落
A: Marco has fallen off a ladder. I think he's hurt his back. What shall we do?
A:马可从梯子上掉下来了。我想他伤了背。我们该怎么办？
B:We'd better not move him. I'll get the first-aider.
B:我们最好不要挪动他。我去叫急救员。
