“dead letter”概念、定义、翻译-科学时代

单词	dead letter
释义	法学词汇手册 dead letter 无效法律，形同虚设的法律；死信
随便看	free press free press free press theory free price free professional free progressive wave free publicity free quota free radical free radical free radical free radical free radical free-radical image free-radical photographic material free range free rate free reading free reading room free recall free reed instrument free regular precession free relative clause free religious association free replacement

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。