英语词汇certified 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	certified mail
释义	certified mailn.（名词） Uninsured first-class mail for which proof of delivery is obtained.保证邮件：保证送到但未经保险的一级邮件
随便看	non obstante no-nonsense nonoxynol-9 nonoxynol–9 nonpareil nonpareils nonpartisan nonpersistent nonperson nonplus nonplused nonpluses nonplusing nonplussed nonplusses nonplussing nonpoint nonpolar nonprescription nonproductive nonprofessional nonprofit nonproliferation nonproprietary name nonpros

英汉双解词典包含166908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。