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- （城市）上空烟雾弥漫。
Smog hung in the sky (over the city).
- 过去伦敦的交通常因烟雾而受阻。
Smog used to bring London traffic to a standstill.
- 餐厅里吸烟的烟雾就没有地方躲得过去吗？
Is there no escape from the ubiquitous cigarette smoke in restaurants?
- 城堡被一层烟雾遮掩着。
The castle was hidden behind a curtain of smoke.
- 空气中烟雾弥漫。
The air was thick with smoke.
- 他点燃雪茄，然后吐出烟雾。
He lit his cigar and exhaled smoke.
- 烟雾探测器已向我们发出火警警报。
Smoke sensors warned us of the fire.
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