【摘要】 建安四年,曹操派刘备督朱灵、路招等人邀击北上的袁术。刘备在袁术退走后,杀徐州刺史车胄并占据下邳等城,这样他就摆脱了曹操的控制。曹操之所以派刘备去邀击袁术,应是因为他不愿意看到袁术投奔袁绍后增强后者的力量,并且选择刘备出面有助于避免他与袁绍之间的战争提前爆发,再加上他仅认识到刘备与袁术有夙怨而低估了刘备与袁绍合作的可能性。刘备公开反曹后获得了袁绍支持,这会加剧袁、曹双方的对立。曹操亲自率军往攻刘备,后者往袁谭处求救,但未果。守下邳的关羽等降曹,而刘备再失徐州。此后刘备与曹操再未有任何合作或妥协,一直坚持反曹。更多还原

【Abstract】 In 199,Cao Cao ordered Zhu Ling and Lu Zhao under the supervision of Liu Bei to intercept Yuan Shao and his troops while they were marching north.Liu,after defeating Yuan Shao and then capturing the city of Xiapi,got out of Cao’s control.Cao had chosen Liu because he wanted to prevent the defeated Yuan Shu from joining and reinforcing Yuan Shao.Later when Liu decided to rebel against Cao,he got the support of Yuan Shao.After he encountered a series of defeats inflicted by Cao,they became deadly rivals.更多还原