go to the dogs堕落　　 dog eat dog自相残杀　　make a pig of oneself猛吃猛喝;贪得无厌　　work like a horse 埋头苦干　　ea......

羊年侃“sheep”，猴年侃“monkey”。十二生肖（鼠rat，牛ox，虎tiger，兔rabbit，龙dragon，蛇snake，马horse，羊sheep，猴monkey，鸡rooster，狗dog，猪pi......