世界污染大部分来自发达国家，其中95%是危险污染。

Most of the world's pollution comes from developed countries, which produce more than 95% of dangerous pollution.

youdao

世界污染大部分来自发达国家，其中95%是危险污染。

Most of the world's pollution comes from developed countries, which produce more than 95% of dangerous pollution.

youdao