“lower-middle class”概念、定义、翻译-科学时代

单词	lower-middle class
释义	人口学词汇手册 lower-middle class 下中层阶级
随便看	secondary meristem secondary metabolism secondary metabolite secondary metabolite secondary metal secondary metal secondary metallurgy secondary metallurgy secondary mill secondary mineral secondary mirror secondary mortgage secondary mortgage market secondary mortgage market secondary mortgage market secondary motion secondary mycelium secondary natural radionuclide secondary nature secondary need secondary neutral particle mass spectrometer (SNPMS) secondary neutron secondary nuclear and chemical hazard secondary nuclear auxiliary power project secondary nuclear fuel

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。