EEA

例句：

1. 1. The European Union is a political and economic union of 27 countries.
   欧盟是一个由27个国家组成的政治和经济联盟。
2. 2. The European Economic Area has been expanding since the 1990s.
   自1990年代以来，欧洲经济区一直在扩大。
3. 3. The European Economic Area aims to promote free trade and economic cooperation among its member states.
   欧洲经济区旨在促进其成员国之间的自由贸易和经济合作。