“population composition”概念、定义、翻译-科学时代

单词	population composition
释义	社会学词汇手册 population composition 人口构成
随便看	dropped stitch dropper dropper dropping consistency dropping corrosion test dropping corrosion test dropping distance dropping mercury electrode dropping product drop pit drop reaction drop reaction drop repeater drop roller drops drop-scene drop scone drop shadow drop shipment drop shipment drop shipment drop shipment drop shipper drop shipping drop shipping

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。