“black check”概念、定义、翻译-科学时代

单词	black check
释义	林业词汇手册 black check 黑色裂纹（铁杉木材缺陷）
随便看	political news political norm political obligation political offence political offender political offensive political officer political officer political opportunism political order political organization political orientation political orientation political outlook political participation political participation political party political party political party political party system political persecution political personality political phenomenon political philistine political philosophy

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。