英语词汇first-day cover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	first-day cover
释义	first-day cover /ˈfɜːstdeɪ/ noun an envelope bearing a stamp or set of stamps postmarked on their day of issue 首日封。
随便看	smarty smarty-pants smash smash-and-grab smashed smasher smashing smashingly smash-mouth smash-up smatterer smattering smaze SME smear smear campaign smearer smear test smeary smectic smectite smegma smell smellable smell a rat

英汉双解词典包含131075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。