[N-VAR 可变名词]烟雾(烟与雾的混合物,见于某些重工业城市)Smog is a mixture of fog and smoke which occurs in some busy industrial cities.
Cars cause pollution, both smog and acid rain.
汽车造成的污染既有烟雾也有酸雨。
Oxford
smog/smɒɡ; NAmEsmɑːɡ/noun[uncountable , countable ]a form of air pollution that is or looks like a mixture of smoke and fog,especially in cities 烟雾(烟与雾混合的空气污染物,尤见于城市)◆attempts to reduce smog caused by traffic fumes旨在降低车辆尾气造成的烟雾的措施smogsmogs▶smoggysmoggysmoggiersmoggiest/; NAmE/adjectivesmog/smɒɡ; NAmEsmɑːɡ/smoggy/; NAmE/