同学你好，该知识点来自沪江网校《2020考研公共课名师全程班【英语一】(屠皓民名师团队)》的课程，想要更系统的学习，欢迎进入课程学习。不仅可以和更多的同学一起学习，而且还有老师、助教随时的学习指导和知识点解答哦。

on behalf of一般指代表某些人；on the behalf 是指受谁的委托，
He spoke on behalf of all the members of the faculty and staff.
他代表全体教职员工讲了话。
n the behalf of all the members of my mission, I would like to take this opportunity to express our sincere thanks to our host for their earnest invitation.
我愿借此机会，代表我们代表团的全体成员，对我们东道主的诚挚邀请，表示真诚的谢意。