柯林斯詞典smog /sm?ɡ/ (smogs) 1. N-VAR Smog is a mixture of fog and smoke which occurs in some busy industrial cities. 煙霧 Cars cause pollution, both smog and acid rain. 汽車引起污染，既有煙霧又有酸雨。 返回 smog劍橋詞典a mixture of smoke , gases , and chemicals , especially in cities , that makes the atmosphere difficult to breathe and harmful for health （尤指城市中的）霧霾，煙霧 Smog is a major problem in Athens. 霧霾是雅典的一個主要問題。 As we flew into the airport , we could see a murky yellow smog hovering over the city . 我們飛進(jìn)機(jī)場時，可以看到一層黃色的霧霾籠罩在城市上空。 返回 smog