playtime
noun [ U ] uk/ˈpleɪ.taɪm/ us/ˈpleɪ.taɪm/
游戏时间;（尤指）课间休息
a period of time, especially during school hours, when children can play outside
You'll have to stay in at playtime today, because it's raining. 今天课间休息时你们得呆在室里，因为外面正在下雨。