| 单词 | certified mail |
| 释义 | certified mailˌcertified ˈmail noun [uncountable] a method of sending mail in which the person who receives it must sign his or her name to prove it has been received |
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英语词典包含48224条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。