“乐观主义”概念、定义、翻译-科学时代

单词	乐观主义
释义	教育学词汇手册乐观主义 optimism
随便看	identifiable parameter identifiable plate identifiable system identification identification identification identification identification identification identification identification identification identification identification identification identification identification identification identification identification identification identification address mark identificational assimilation identification and authentication identification and authentication

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。