英语词汇first class mail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 class mail
释义	first class mail 简明释义头等邮件：指邮局中最快速、最高级别的邮寄服务，通常用于寄送信件、明信片、小包裹等。
随便看	conformable matrix conformable oil ring conformable optical mask conformable packing conformable relation conformable ring conformable strata conformable support structure conformably conformably superimposed stream conformal conformal antenna conformal arc element conformal array conformal-array aerial conformal array antenna conformal-array radar conformal azimuthal projection conformal carriage conformal change of metric conformal chart conformal coating conformal condition conformal cone projection conformal conic projection

英汉双解词典包含3185865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。