合作: cooperate; collaborate; work together 短语和例子互相合作 cooperate with each other; 与朋友合作编纂字典 cooperate with friends in compiling a dictionary; 这幅画是他们合作的。 this painting is their joint work.; 合作部门 s
联盟: alliance; coalition; league; union 短语和例子左翼联盟 the left-wing coalition; 国际联盟 the league of nations; 由条约缔结的联盟 a union by treaty; 结成联盟往往是为了共同防御。 leagues are commonly made for mutual defense