sell-out

名词背叛; 演出（或比赛等的）满座，票已售完

动词(sell out)卖光，脱销

1. (演出或比赛等的)满座，爆满
    If a play, sports event, or other entertainment is a sell-out, all the tickets for it are sold.

    e.g. Their concert there was a sell-out.
           他们在那里举办的音乐会座无虚席。
    e.g. ...sell-out shows.
           观众爆满的演出

2. (对原则的)背弃;(向敌对势力的)屈服
    If you describe someone's behaviour as a sell-out, you disapprove of the fact that they have done something which used to be against their principles, or given in to an opposing group.

    e.g. For some, his decision to become a Socialist candidate at Sunday's election was simply a sell-out.
           对某些人来说，他决定以社会党候选人的身份参加星期天的选举简直是一种叛变。