ADJ
（观众）被强制的，受控制的;(市场)垄断的，没有选择权的
A captive audience is a group of people who are not free to leave a certain place and so have to watch or listen. A captive market is a group of people who cannot choose whether or where to buy things.
例句
We all performed action songs, sketches and dances before a captive audience of parents and patrons...
家长和赞助人被迫观看了我们表演的指令歌、滑稽小品和舞蹈。
Airlines consider business travellers a captive market.
航空公司把商务旅行者视为垄断性市场。