英语词汇sign and countersign怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	sign and countersign
释义	sign and countersign 口令；切口，暗语
随便看	breast height breast-high breasthook breast in breasting breastings breastless breast line breast lining breast-not-bottle policy breast off breast oneself to breastpin breastpins breastplate breastplated breastplates breast pump breast pumps breastrail breastrails breast reduction breasts breast stope breast stoping

英汉双解词典包含483723条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。