这个浴室使用抽风扇通风。The bathroom is ventilated by means of an extractor fan.风扇正吹着.The fan was blowing.必须用巨大的风扇来冷却混凝土地面，将其温度控制在150度以下。Huge fans will have to cool the concrete floor to keep it below 150 degrees....
Heave the rocks into the ravine.把这些石头扔进深谷里.Captain Cornish repeated his order to heave to.科尼什船长再次下达了停航的命令。Heave ho , my hearties!伙伴们,用力呀!He gave the discus a tremendous heave.他猛一使劲掷出铁饼.It took five strong men to heave th...