couchn.长椅;睡椅;长沙发;兽穴vt.表达;躺下vi.埋伏;躺下
couch oneself by the tree横卧在树旁
couch in insolent language措词无理
couch criticisms in tactful language以委婉的话语提出批评
couching and aspiration for cataract白内障针拨吸出术