be no skin off someone's back
US /bi noʊ skɪn ɔf ˈsʌm.wʌnz bæk/
UK /bi noʊ skɪn ɔf ˈsʌm.wʌnz bæk/
1.
不关某人的事, 对某人没有影响
to not be a problem or concern for someone; to not affect someone negatively
:
•
It's no skin off my back if you don't want to come.
如果你不想来，那不关我的事。
•
Whether they agree or not, it's no skin off my back.
他们是否同意，不关我的事。