play into someone's hands
US /pleɪ ˈɪntu ˈsʌmwʌnz hændz/
UK /pleɪ ˈɪntu ˈsʌmwʌnz hændz/

1.
누구의 손에 놀아나다, 누구에게 유리하게 되다
to do exactly what your opponent wants you to do, so that they gain an advantage over you
:
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By arguing with him, you're just playing into his hands.
그와 논쟁함으로써, 당신은 그저 그의 손에 놀아나는 것뿐이다.
•
The opposition's mistakes played right into the government's hands.
야당의 실수는 정부의 손에 놀아났다.