无烟雾的,不排放烟气的
Smog hung in the sky (over the city). (城市)上空烟雾弥漫。
Black smog reduced visibility to about fifty yards. 黑色的烟雾使能见度降到大约五十码左右。
Smog used to bring London traffic to a standstill. 过去伦敦的交通常因烟雾而受阻。
The air is polluted with the smother of traffic and industrial smog. 空气被令人窒息的车辆废气和工业烟雾污染了。
They had the Smog checking license. 他们有做尾气检查的牌照，就给他们做了。
The city was overhung with the pollutant smog. 整个城市弥漫在污染的浓雾之中。
