/kaʊtʃ ||; kaυtʃ/noun [C] a long seat, often with a back and arms, for sitting or lying on 长沙发，躺椅（通常有靠背和扶手）: They were sitting on the couch in the living room.他们坐在客厅的长沙发上。
couch²
/kaʊtʃ ||; kaυtʃ/verb [T] (usually passive 通常用于被动语态) (formal 正式) to express a thought, idea, etc in the way mentioned （以某种语气）表达，措辞: His reply was couched in very polite terms.他的回复措辞十分得体有礼。