3 sentences for 烟雾 (yān​wù — smog)

1. 空气中弥漫着浓重的烟雾。

   kōng​qì zhōng mí​màn zhe nóng​zhòng de yān​wù.

   The air was thick with smoke.

   Source: Dong Chinese Dictionary

2. 今天的烟雾特别浓，窗外白茫茫的。

   jīn​tiān de yān​wù tè​bié nóng, chuāng wài bái​máng​máng de.

   The fog is particularly thick today, and everything outside the window is white.

   Source: Dong Chinese Dictionary

3. 工厂排出的烟雾严重污染了周围的空气。

   gōng​chǎng pái​chū de yān​wù yán​zhòng wū​rǎn le zhōu​wéi de kōng​qì.

   The smoke emitted from the factory has severely polluted the surrounding air.

   Source: Dong Chinese Dictionary