“learning difficulty”概念、定义、翻译-科学时代

单词	learning difficulty
释义	教育学词汇手册 learning difficulty 学习困难
随便看	external audience external audience external audit external audit external audit external audit external audit demand external auditor external auditor external balance external behaviour external benchmarking external benefit external bill external bisector external bond external breeding ratio external bremsstrahlung external bremsstrahlung external budding external capital external cause external change external characteristic external charge blasting

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。