“lower-upper class”概念、定义、翻译-科学时代

单词	lower-upper class
释义	人口学词汇手册 lower-upper class 下上层阶级
随便看	posture map posture ratio posture recognition post-vasectomy pregnancy post-velar postverbal negation post voluntary attention post-wage system postwar postwar postweaning gain postweld treatment postwriting post-yield strain gauge postzygapophysis posynomial POS（point of sale） POS（point of sale） pot pot pot pot potable water potable water potable water tank

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。