“联谊会”用英语怎么说？

他连续跳级，18岁时就以全美优等生联谊会成员的身份从肯塔基大学毕业。Moving rapidly through school, he graduated Phi Beta Kappa from the University of Kentucky at age 18.三四年级的学生相互合作,为联谊会布置体操馆.The third and fourth grades teamed up to decorate the gym for t...