arena

n. 角鬥場、舞臺、場地

尿沉渣、尿沙、腦沙

學術名詞

• 界：海事
• 馴馬場：體育
• 競技場：舞蹈、資訊

英文釋義

1. a particular environment or walk of life
2. the central area of an ancient Roman amphitheater where contests and spectacles were held; especially an area that was strewn with sand
3. a large structure for open-air sports or entertainments
4. a playing field where sports events take place