twist someone's arm
US /twɪst ˈsʌm.wʌnz ɑːrm/
UK /twɪst ˈsʌm.wʌnz ɑːrm/

1.
扭某人的胳膊, 说服某人
to persuade someone to do something they do not want to do
:
•
I didn't want to go, but she twisted my arm.
我不想去,但她扭了我的胳膊。
•
He didn't agree at first, but we managed to twist his arm.
他一开始不同意,但我们设法说服了他。