a bivalent and trivalent metallic element of the rare earth group
同义词:europium??/??Eu??/??atomic number 63
an international organization of European countries formed after World War II to reduce trade barriers and increase cooperation among its members
同义词:European Union??/??EU??/??European Community??/??EC??/??European Economic Community??/??EEC??/??Common Market??/??Europe
英汉双解词典包含3185865条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。