sell-out

noun

/ˈsel aʊt/

[usually singular]

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a play, concert, etc. for which all the tickets have been sold满座的演出（或比赛等）
- Next week's final looks like being a sell-out.看来下周的决赛将爆满。
- a sell-out tour场场爆满的巡回演出
Topics Musicc2, Film and theatrec2
a situation in which somebody behaves badly towards a person or group who trusted them, by not doing something that they promised to do, or by doing something that they promised not to do违反诺言；违背原则
- The workers see the deal as a union sell-out to management.工人认为这个协议是工会把他们出卖给了资方。