on behalf of
US /ɑːn bɪˈhæf ɑːv/
UK /ɑːn bɪˈhæf ɑːv/

1.
代表, 为了
as a representative of someone or something
:
•
She accepted the award on behalf of her team.
她代表她的团队接受了奖项。
•
I'm calling on behalf of Mr. Smith.
我代表史密斯先生打电话。
2.
为了, 为...的利益
for the benefit or advantage of
:
•
We are raising funds on behalf of the local charity.
我们正在为当地慈善机构筹集资金。
•
He made a sacrifice on behalf of his family.
他为了家人做出了牺牲。