smogs
n. 烟雾( smog的名词复数 )
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。
New York City has had several London - type smogs since 1950.
自1950年以来,纽约市发生过几次伦敦 式 的烟雾.
Killer smogs don't happen very often, fortunately.
幸亏致人死命的烟雾不常出现.