“only child”概念、定义、翻译-科学时代

单词	only child
释义	人口学词汇手册 only child 独生子女
随便看	closed-loop servo system closed loop steam system closed-loop system closed-loop system closed-loop system closed manifold closed mapping closed marginal vesicle closed market closed model organization closed mortgage closed motor skill closed mouth disease closed operator closed orbit closed orbit closed orbit closed ovary close down closed pair closed pass closed pasture system closed path closed path space closed pension fund

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。