“介绍信”概念、定义、翻译-科学时代

单词	介绍信
释义	请查阅参考--介绍人--介绍信--证明书--证明人
随便看	productive assets productive attitude productive capacity productive capacity productive capacity productive capital productive capital productive consumption productive cycle productive efficiency productive efficiency productive expenditure productive force productive force productive force productive force productive investment productive labour productive labour cost method productive labour hours method productive language knowledge productive life span productively infected cell productive magic productive magic

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。