竞技场的

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

特务机关的理人把演讲者驱逐出竞技场。

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

那就是罗马的椭圆型露天竞技场了，基本上是综功能的体育场。