If it feels hot, there may be smoke or fire behind the door, so take care.

如果感觉很热，门后可能有烟或火，所以要小心。

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It was a windowless erection used for storage, and from the open door there floated into the obscurity a mist of yellow radiance, which at first Tess thought to be illuminated smoke.

户外小屋是一座没有窗子的建筑，用来堆放东西的，从打开的房门里，有一股黄色的发亮的烟雾飘出来，溶进屋外的昏暗中，起初苔丝把它们当成了被灯光照亮的烟雾。

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Close yourself in a smoke-free room and place a wet towel underneath the door to prevent any smoke from entering, says Dan McBride, a firefighter in New York City.

把自己关进一个无烟的房间，将一条湿毛巾放于门下方以阻止烟雾进入房间，丹麦克布莱德，纽约的一名消防队员说。

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He opened the jetway door so smoke wouldn't travel into the terminal and began a search of the passenger cabin to make sure no one was aboard.

WSJ: Airplane Fires: Dallas-Fort Worth International Airport's Firefighter Training

He then charged through the front door, into a swirl of smoke and fire.

NEWYORKER: Trial by Fire

Burning paper was pushed through his front door early on Saturday, but smoke alarms alerted the family and they managed to extinguished the blaze with a garden hose.

BBC: Fumes kill woman in house fire