n. the central area of an ancient Roman amphitheater where contests and spectacles were held; especially an area that was strewn with sand
n. a playing field where sports events take place
n. 角斗场, 舞台, 场地
[医] 尿沉渣, 尿沙; 脑沙
1. The concert will be held in a large arena downtown.
音乐会将在市中心的一个大体育馆举行。
2. Many famous athletes compete in this arena every year.
每年许多著名运动员在这个竞技场比赛。
3. The debate took place in a crowded arena with thousands of spectators.
辩论在一个拥挤的竞技场进行，观众有成千上万。