theatre in the round
noun [ C or U ] uk/ˌθɪə.tər ɪn ðə ˈraʊnd/ us/ˌθiː.ə.t̬ɚ ɪn ðə ˈraʊnd/
（观众坐在舞台周围的）圆形剧场;圆形剧场戏剧表演
a theatre where people sit on all sides of the performers, not just in front of them, or a type of performance that tries to involve the people watching