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 envelope with a set of special stamps postmarked on the first day of issue 首日封.
随便看	turtle turtle-dove turtle-neck turtle-necked turves tusk tussle tussock tut tutelage tutelary tutor tutorial tutti-frutti tutu tuxedo TV twaddle twang twat tweak twee tweed tweedy tweet

英汉双解词典包含38652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。