单词 | franciums |
释义 | francium /franˈsi-əm/nounAn unstable radioactive metallic element (symbol Fr; atomic no 87) present in uranium ore ORIGIN: Named after France, the country of its discoverer, Marguerite Catherine Perey (1909–75) |
随便看 |
英语词典包含305067条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。