Walk in a crouch or crawl along the wall and proceed towards an emergency staircase 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。

Her cabbie tells her she can beat the traffic by hopping out of the car and down an emergency staircase at the next exit. He warns her that things will not be the same.

出租车司机告诉青豆说她可以通过走一条附近出口的紧急通道来绕开堵车，不过，他警告说如果她这么做了，事情将会不一样了。

Or if the skyscraper has an outside emergency staircase, it would be easier to walk up it and mark off the height of the skyscraper in barometer lengths, then add them up.

或者如果摩天大楼有外置的紧急楼梯，那就更容易了，沿楼梯从下往上走，以气压计长度为单位标注摩天大楼有多少个气压计长度，然后再把这些数值加和起来。