What does "friend" mean? What are "friends" anyway? Is he or she really your friend if you know him or her (just) by name? Or if you have met each other before? Or if you got his or her (phone) number?
何谓朋友?朋友是什么? 当你知道他（她）的名字，还是见过面。还是你有 他（她）的电话。friend?who is friend?It is the one that you know his(her)name ,or you ever met,oryou know his(her) phone number?
