smog

US /smɑːɡ/
UK /smɑːɡ/
"smog" picture
1.

煙霧, 霧霾

fog or haze intensified by smoke or other atmospheric pollutants, especially from motor vehicles.

:
The city was covered in a thick layer of smog.
城市被一層厚厚的煙霧籠罩著。
Breathing in smog can cause respiratory problems.
吸入煙霧會導致呼吸道問題。