“population pyramid”概念、定义、翻译-科学时代

单词	population pyramid
释义	人口学词汇手册 population pyramid 人口金字塔
随便看	dyspepsia dysphagia dysphagia dysphagia dysphagia-occlusion dysphasia dysphasia dysphasia dysphonia dysphonia dysphonia due to tongue disorder dysphonia during pregnancy dysphoria dysphoria dysphoria dysphotic zone dyspigmentation dyspigmentation dysplasia dysplasia dysplasia dyspnea dyspnea dyspnea dyspnea

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。