也曾在乌烟瘴气的湖南长沙呼不给吸。

I've choked on the dust of Changsha in Hunan province.

youdao

别抽烟了，弄得房间里乌烟瘴气的。

Don't smoke - it makes the room smell really foul.

youdao

那么，在未来这些乌烟瘴气的大都市里，重要的包裹如何还能到达目的地呢？

How, then, can important parcels reach their destinations in a squalid megalopolis of the future?

youdao