“announcement machine”概念、定义、翻译-科学时代

单词	announcement machine
释义	广播影视词汇手册 announcement machine 广播（录音）机
随便看	back-to-back stem-and-leaf plot back to battery Back to the Basics Back to the Source backtracking backtracking backtracking back tracking backtracking backtracking algorithm back translation back turret backup backup backup backup backup backup backup backup backup backup and data archiving backup authority backup battery backup browser

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。