网站首页 词典首页
1Computing A defined standard structure for relational databases in which a relation may not be nested within another relation.
2Philosophy A standard structure or format in which all propositions in a (usually symbolic) language can be expressed.
春雷网英语在线翻译词典收录了464360条英语词汇在线翻译词条，基本涵盖了全部常用英语词汇的中英文双语翻译及用法，是英语学习的有利工具。