“prehistoric age”的概念、定义、翻译、参考文献-科学参考

单词	prehistoric age
释义	prehistoric age 史前时代
随便看	tubus vertebralis Tucana (Tuc) tuck tuckahoe tuck and pat pointing tucker tucking blade tuck-in selvage tuck in the hook tuck joint tuck joint pointing tuck-pointed joint tuck-pointer trowel tuck pointing tuck-under (在临界马赫数附近时的) tuck-up tuck weave tuclase (咳必清) tuco-tuco tucunara Tudor arch Tudor architecture Tudor flower Tudor rose Tudor style

科学参考收录了1248194条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。