used as the object of a verb or preposition to show that each member of a group does something to or for the other members（用作动词或介词的宾语）互相，彼此synonymone another
Don and Susie really loved each other (= he loved her and she loved him).唐和苏茜确实相亲相爱。🔊🔊
They looked at each other and laughed.他们彼此看了看便笑了起来。🔊🔊