众所周知，我国从古至今都是一个懂得利益的国度。在历史上的春秋时期，就连打仗也是要讲礼仪的。在《左传》中就有说到：国之大事，在祀与戎。在春秋战国时期...

We all like to make friends, we live in a society that we need to communicate with others. Without a friend, one can never express his emotions, no...