n.  〔四周设有座位供比赛或表演的〕场地

• sports arena  运动场

• indoor arena  室内剧场

• the political/international/public arena 

  政治/国际/公众舞台

• Our country needs more scientists who are willing to step out in the public arena and offer their opinions on important matters. 

• Women are entering the political arena in larger numbers. 越来越多的女性进入政界。

• He made it clear he had no intention of withdrawing from the political arena.

  他明确表示他没有退出政治舞台的意图。