发展中国家受空气污染影响最为严重，在一些地区，劳动力收入损失几乎相当于国内生产总值的1%。

The effects of air pollution are worst in the developing world, where in some places lost-labor income equals nearly 1% of GDP.

youdao

发展中国家受空气污染影响最为严重，在一些地区，劳动力收入损失几乎相当于国内生产总值的1%。

The effects of air pollution are worst in the developing world, where in some places lost-labor income equals nearly 1% of GDP.

youdao