Question

Alter ego generally refers to someone with whom you are so close that you both do the same things, think alike, react similarly, and are, in temperament, almost mirror images of each other. Any such friend is your other I, your other self, your alter ego. others

Accepted Answer

It combines alter, other, with ego, I, self. Word Power Made Easy SESSION 2

知识	Alter ego generally refers to someone with whom you are so close that you both do the same things, think alike, react similarly, and are, in temperament, almost mirror images of each other. Any such friend is your other I, your other self, your alter ego.
拓展	It combines alter, other, with ego, I, self.
《》	others
出处	Word Power Made Easy SESSION 2

Alter Ego I Generally Refers To Close Things Alike