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Buildings are making people sicker, he said, and for the poorest in the world, this is causing epidemic-level problems.
他说,在全世界最贫困的地方,这引起了流行病程度上的问题。
流行病的水平;流行病程度
Buildings are making people sicker, he said, and for the poorest in the world, this is causing epidemic-level problems.
他说,在全世界最贫困的地方,这引起了流行病程度上的问题。