“乐”概念、定义、翻译-科学时代

单词	乐
释义	音乐词汇手册乐 musical bow
随便看	model model model model model model model model model model model model model model model model model act model agreement model-aided decision system model algorithm model analytics model answer model atmosphere model atmosphere analysis model bank

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。