The secret service agents hustled the speaker out of the amphitheater.

务机关代理人把演讲者驱逐出竞技。

That must be the oval unroofed amphitheater in Rome. It was basically a stadium with comprehensive functions.

那就是罗马椭圆型露天竞技了，基本上是综合功能体育。

The amphitheater was a sealed off round structure. Swordplay, wresting, gladiatoral and other contests were held there.

该竞技为四周封闭式结构，可以举行斗剑、格斗、斗兽及其他竞赛项目。