play at

柯林斯词典

1. PHRASAL VERB If you say that someone is playing at something, you disapprove of the fact that they are doing it casually and not very seriously. 把…当儿戏[no passive] [表不满]
We were still playing at war – dropping leaflets instead of bombs. 我们仍然在把战争当儿戏–在空投传单而不是在投炸弹。
2. PHRASAL VERB If someone, especially a child, plays at being someone or doing something, they pretend to be that person or do that thing as a game. 扮…玩[no passive]
Ed played at being a pirate. 埃德假扮海盗。
3. PHRASAL VERB If you do not know what someone is playing at, you do not understand what they are doing or what they are trying to achieve. 搞 (什么)[非正式]
She began to wonder what he was playing at. 她开始纳闷他在搞什么。