But Emmons observed that at flashover, the hot smoky layer instantly drops down.但埃蒙斯观察到发生闪燃时, 热烟层瞬即下落.Before flashover occurs, a person in a burning room may crawl to safety along the floor.闪燃发生前, 着火房间里的人可沿着地板爬行到安全地带.Pol...
Some good might come of all this gloomy business.生意不景气也未必全是坏事。The short-term outlook for employment remains gloomy.近期的就业前景依然暗淡。Inside it's gloomy after all that sunshine.尽管阳光明媚，里面依然暗淡无光。...