Toxic smoke from wildfires returns to Moscow.

有毒烟雾再袭莫斯科。

youdao

If there's smoke in the cabin, get low and crawl below the level of the smoke and toxic fumes, so you can breathe until you get out of the plane.

如果机舱里有烟雾，把身体放低到烟雾与有毒气体的下面爬行，这样你能在你离开飞机前保持呼吸。

youdao

Experts think the toxic chemicals in smoke can damage the DNA in hair follicles and generate cell-damaging free radicals as well.

专家们认为香烟中的有毒化学物质灰损害毛囊中的基因，同时产生破坏细胞的自由基。

youdao

Every day, 3 billion people in developing countries are exposed to toxic smoke when preparing meals.

FORBES: Cleaner Cookstoves For Christmas

Most of the victims died after inhaling the toxic smoke produced when ceiling insulation foam caught fire.

BBC: Brazil nightclub fire: Four charged with manslaughter

The toxic smoke affected Puerto Madero, Congreso, San Telmo and other central areas of the Argentine capital.

BBC: Chinese pesticide cloud alarms Buenos Aires