But nearly 12,000 people die in the U.S. every year after falling down a staircase.

但是在美国每年将近12,000人从楼梯跌落而死。

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But nearly 12,000 people die in the U.S. every year after falling down a staircase.

但是在美国每年将近12,000人从楼梯跌落而死。

youdao