英语词汇be upon one's guard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	be upon one's guard
释义	be upon one's guard 警惕，提防；警戒
随便看	hemagogue hemal hemal arch hemal arches hemal ring hemal sinus hemal system he-man hemanalysis hem and haw hemangioblastoma hemangioblastomas hemangioendothelioblastoma hemangioendothelioma Hemangioendotheliomas hemangioma hemangiomas hemangiomata hemangiopericytoma hemangiopericytomas he-man strategy hemapodium hem around hemarthrosis hemat-

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。