“封口”概念、定义、翻译-科学时代

单词	封口
释义	请查阅密封--封口--密封装置
随便看	account balanced account bill account bill account bill account bill account bill account bill account book account book account book account book account book account book (a/c bk) account bought account card account card account cheating account classification account classification account code account collected in advance account collected in advance account current account current account current

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。