on somebody's behalf
US /ɑːn ˈsʌmbədiz bɪˈhæf/
UK /ɑːn ˈsʌmbədiz bɪˈhæf/

1.
代表, 为了
as a representative of someone else
:
•
She accepted the award on her father's behalf.
她代表她父亲接受了奖项。
•
I'm calling on behalf of my client.
我代表我的客户打电话。
代表, 为了
as a representative of someone else