vt.表达（couch的过去式与过去分词形式）； 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 lies when being examined by a doctorv.(动词)vt. 表达 express (a thought, an idea, etc.) (in words)英英释义： couch[ k