英汉词典

1. 长沙发;长榻
    A couch is a long, comfortable seat for two or three people.

couch的反义词

2. (病人接受检查或治疗时的)诊察台
    A couch is a narrow bed which patients lie on while they are being examined or treated by a doctor.

3. (以某种语言风格)表达，措词
    If a statement is couched in a particular style of language, it is expressed in that style of language.

    e.g. The new centre-right government's radical objectives are often couched in moderate terms...
           新的中右翼政府经常以温和的语言表述其激进的目标。
    e.g. This time the proposal was couched as an ultimatum.
           这一次该提议是以最后通牒的形式提出来的。