1. 体育场;运动场：体育||physical culture; physical education | 体育场;运动场||athletic field | 体育学校||physical education school

2. 运动场：at rest earth pressure coefficient 土的静压系数 | athletic field 运动场 | athletic ground 运动场

3. 体育场：asynchronous transmission 异步传输 | athletic field 体育场 | atmometer 蒸发计

4. 田径场地：投掷圈 circle | 田径场地 athletic field | 限制圈 circle band

2. athletic field的解释

noun

1. a piece of land prepared for playing a game

    e.g. the home crowd cheered when Princeton took the field

    Synonym: playing fieldplaying areafield