on someone's behalf , on behalf of someone
If you do something on someone's behalf, you do it for that person as their representative.
interest , sake , part
She made an emotional public appeal on her son's behalf.
她代表儿子发出了感动人心的公开呼吁。
Secret Service officer Robin Thompson spoke on behalf of his colleagues.
情报局官员罗宾·汤普森代表他的同事们讲了话。
If you feel, for example, embarrassed or angry on someone's behalf, you feel embarrassed or angry for them.
'What do you mean?' I asked, offended on Liddie's behalf.
“你什么意思?”我问道,替莉迪感到愤愤不平。