A large enclosed venue for sports, concerts, or major events.

• The building that houses such a venue.

用于体育、演唱会等大型活动的封闭场馆。

• 容纳此类活动空间的建筑物。

The enclosed central area where events occur, often earthen or sand-covered.

• Especially a rodeo ring or bullfighting ring.

比赛或表演的中心封闭场地，常为土或沙地。

• 尤指牛仔竞技或斗牛的圆形场地。

The sand-covered center of a Roman amphitheatre where contests were held.

古罗马圆形竞技场中央的覆沙场地。

A sphere of activity or competition.

• A field of action, study, or debate.

活动或竞争的领域。

• 行动、研究或辩论的舞台。