至交指友谊深厚,不猜不疑的朋友。世交也称世谊,指两家世代有交情。八拜之交旧时称结拜的兄弟、姐妹之交。竹马之交指自幼年相交的朋友。忘年之交指年岁差别大或辈分悬殊,但交情深厚的朋友。刎颈之交指同生共死的朋友。莫逆之交指相互情投意合的朋友。点头之交指交情不深,仅是见面点 To refer to the deep friendship, no doubt that no friend. World friendship also known as World friendship, refers to the two generations have friendship. The worship of the old brother and sister called the sworn brothers. Horseshoe crossing refers to the friends who have crossed since childhood. The handover of the year of annals refers to the large differences in seniority or seniority, but deep friendship with friends.刎 neck of the intersection refers to the life and death of friends. Mo inverse refers to mutual friends. The nod of the fingers is not deep friendship, just to meet