暴露于室内空气污染使患肺炎的危险增加1倍以上，并因此是每年由肺炎引起的200万死亡中造成90多万死亡的原因。

Exposure to indoor air pollution more than doubles the risk of pneumonia and is thus responsible for more than 900 000 of the 2 million annual deaths from pneumonia.

youdao

暴露于室内空气污染使患肺炎的危险增加1倍以上，并因此是每年由肺炎引起的200万死亡中造成90多万死亡的原因。

Exposure to indoor air pollution more than doubles the risk of pneumonia and is thus responsible for more than 900 000 of the 2 million annual deaths from pneumonia.

youdao