[] an agreement between countries, companies, etc. to work together in order to achieve sth that they all want（国家、公司等的）联盟，结盟，同盟◆The two companies formed an alliance to improve shipping and distribution networks.两家公司结盟以改进航运和经销网络。◆The proposed alliance between the two airlines has been widely criticized.两家航空公司的结盟建议受到广泛批评。◆The training department runs the course, in alliance with the university.培训部与大学联合开设这课程。⨁to enter into / form / make an alliance达成／形成／缔结同盟a group of countries, companies, etc. who work together in order to achieve sth that they all want联盟；结盟团体◆There are eight members of the alliance.联盟共有八个成员。◆The organization is a broad alliance of many different groups.这组织是由多个不同群体组成的广泛联盟。strategic alliance