“countdown”概念、定义、翻译-科学时代

单词	countdown
释义	图书馆、情报与文献学词汇手册 countdown 零讯，花絮消息（报刊专栏名）
随便看	seasonal variation seasonal variation seasonal variation seasonal variation seasonal variation seasonal variation seasonal variation seasonal variations of pulse season cracking season cracking seasoned pack seasoned securities seasoned securities seasoned securities seasoned timber seasoned timber seasoned vinegar seasoned wood seasoning seasoning seasoning seasoning seasoning seasoning season-long grazing

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。