"Wuran" (pollution), he explained.

污染“，他评释道。”

youdao

There is an official word, wuran, which means pollution, but it always felt like a very strong statement to invoke this word in conversation.

官方有个词来定义pollution，叫“污染”，但是在交谈中总是觉得这个字眼有点重了。

youdao