The researchers find an almost doubling of the asthma rate in children born in the late nineties compared to children born in the eighties.
研究人员发现九十年代末出生的儿童的哮喘发病率比八十年代出生的儿童的哮喘发病率增加了几乎一倍。
The researchers find an almost doubling of the asthma rate in children born in the late nineties compared to children born in the eighties.
研究人员发现九十年代末出生的儿童的哮喘发病率比八十年代出生的儿童的哮喘发病率增加了几乎一倍。
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