矿井中用钢制通风机来保持空气流通。The pit is ventilated by a steel fan.螺旋式通风机从壁孔中排出空气.Propeller fans exhaust air through holes in the wall.窗上的通风机发出了耳语般轻微的嗡嗡声.The fan at the window made a small whispering roar....
He looks much too skinny / scrawny to be a weight - lifter.他瘦骨嶙峋的,当不了举重运动员.He's a scrawny, greyfaced man, who looks half - starved, and he's always very slovenly in appearance.他是个瘦骨棱棱,脸色发灰的人, 活象没吃饱饭, 外表总是非常邋遢.T...