“前人”概念、定义、翻译-科学时代

单词	前人
释义	民族学词汇手册前人 forefather
随便看	down-time downtime down time downtoner Downton's estimator downtown downtown downtowner downtown school down train down tree downturn downtwister downtwisting downward air displacement from full perforated ceiling downward bias downward causation downward causation downward communication downward comparison downward compatible downward continuation downward current downward ejection downward ejection

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。