n.长沙发椅，睡椅；（病人受检查时躺的）长榻；麦芽床；涂底，涂层vt.表达；使躺卧；播撒谷物使发芽；vi.躺卧；隐蔽，埋伏；使成堆； 变形： 复数：couches过去式：couched过去分词：couched现在分词：couching第三人称单数：couches 双语释义：n.(名词)[C]长沙发 long bedlike seat for sitting or lying on[C](病人受检查时躺的)长榻 a bedlike piece of furniture on which a person l