smog
- n. 烟雾
考试真题
- since the 1940s, southern California has had a reputation for smog.
2018年6月四级真题（第二套）阅读 Section A
- A few hours before, I'd been at home in Hong gonk, with its choking smog.
2015年高考英语全国卷1 语法填空 原文
- If the air you're breathing is clean—which it would be if you're away from the smog of cities—then the air is filled with life-giving, energizing oxygen.
2019年高考英语全国卷I 阅读理解 七选五 原文