john123kong
gym体育馆stadium体育场stadiumKK: []DJ: []n.[C]1. 斯塔德(古希腊的长度单位,相当于607-738英尺)2. 体育场,运动场;球场;竞技场The stadium was filled for the final baseball game.体育场被观看最后一场棒球比赛的人群挤满了。3. 【生】期;病期gymKK: []DJ: []n.1. 体育馆[C]He was always at the gym.他常在体育馆里。2. 体操;体育[U]She wore white gym shoes.她穿白色体操鞋。We did an hour of gym.我们做了一小时的体操。
喝汽水的小蜗牛
【解答】in the playground与on the playground 完全互相替换，意义相同。on the playground最早出现在英式英语中，in the playground出现在美式英语中。下面辞典中出现例子：■用in的例证：1. He bullies all other little boys in the playground. 他在运动场上称王称霸，欺负其他小男孩。见商务印书馆的《朗文当代高级英语辞典》bully词条2. He was bashed up in the playground by some older boys. 有几个年龄较大的男孩子在操场上对他动武。见商务印书馆的《牛津高阶英汉双解词典》(第四版)bash词条3. children skipping in the playground 在操场中跳绳的儿童，见商务印书馆的《牛津高阶英汉双解词典》(第四版)skip词条4. The children were out in the playground letting off steam. 那些孩子在操场上玩，宣泄过剩的精力。见商务印书馆的《牛津高阶英汉双解词典》(第四版)steam词条5. The children were running about in the playground. 孩子们在运动场上跑来跑去。见上海外教社的《朗文多功能分类词典》6. There were children fighting in the playground. 见《剑桥高级英语词典》 (Cambridge Advanced Learner’s Dictionary)的fight词条■用on的例证：The children ran out and played on the playground at recess. 休息的时候孩子奔出来到操场上玩耍。见王文昌主编的《英语搭配大词典》The boys chalked out goalposts on the playground wall. 男孩子们在运动场的墙上用粉笔画上了球门柱。见商务印书馆的《牛津高阶英汉双解词典》(第四版)chalk词条■另补充用at的例证：He supervised the children at the playground. 他看管在操场上的孩子们。见外研社的《当代美国英语学习词典》的supervise词条。
