| 单词 | under plain cover |
| 释义 | under plain coverIn an envelope or parcel without any marks to identify the sender.Sales literature posted will be sent under plain cover and will only bear names and addresses on the outside....
See parent entry: cover |
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英语词典包含243303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。