割席绝交: break up an old friendship; break off friendly relations with sb.; break off with one's friend; end the friendship with sb.; sever friendship; sever one's connections with sb.; cut off fri
绝交: break off relations (as between friends or countries); break with; sever diplomatic relations with
绝交信: dear john letterdear john(little)dear jone letterdear jones letterit was a “dear john” letter
划地绝交: sever friendship by making a mark on the ground