1. Ken's mother won't let him go out and play. 肯的母亲不让他出去玩。
2. You are playing yourself. 你在和自己比赛。
3. The kids are playing tag over there. 小孩子正在那儿玩捉人游戏。
英英解释
n.
1. the act of playing a musical instrument
2. the action of taking part in a game or sport or other recreation
3. the performance of a part or role in a drama