1·Cars cause pollution, both smog and acid rain.
汽车引起污染，既有烟雾又有酸雨。
—— 《柯林斯英汉双解大词典》
2·The sky over the city was overspread with heavy smog.
城市上空罩上了一层浓重的烟雾。
3·Under the cover of the smog, He snatched the pot on the sly.
在烟雾的掩护下，他偷偷地拿走了那只壶。
4·Most of my friends are moving outside the city to avoid the noise, smog and traffic of the city.
我的大多数朋友都搬到城外来躲避城市的噪音、烟雾和交通。
5·She gave up presently as if a cloud had approached the sun or the smog thickened and so broken the religious instant, whatever it might have been.
现在她放弃了，就像乌云接近太阳，或烟雾变浓，因此这个宗教瞬间破碎了，不管它之前是什么样子。