Walk in a crouch or crawl along the wall and proceed towards an emergencystaircase free of flames.
面向无火苗处的紧急防 火楼梯处,沿着墙弯腰低头爬行前进。
2
Her cabbie tells her she can beat the traffic by hopping out of the car and down an emergencystaircase at the next exit. He warns her that things will not be the same.
Or if the skyscraper has an outside emergencystaircase, it would be easier to walk up it and mark off the height of the skyscraper in barometer lengths, then add them up.