economic and monetary union

例句：

1. 1.The European Union is an economic and monetary union of 28 member states.
   欧盟是一个由28个成员国组成的经济和货币联盟。
2. 2. The United States and China have been discussing the possibility of an economic and monetary union.
   美国和中国一直在讨论建立经济和货币联盟的可能性。
3. 3. The success of the economic and monetary union depends on the cooperation between the member countries.
   经济和货币联盟的成功取决于成员国之间的合作。