英语词汇under plain cover是什么意思，under plain cover的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典-觉斋网

单词	under plain cover
释义	WORD PARTNERSHIP 词语搭配〔plain〕send under plain cover 用不注明发信人姓名(或内容)的封皮寄发英汉大词典
随便看	testing and scoring system testing battery testing campaign testing certificate testing company testing constant testing department testing device testing door testing envelope testing environment testing expenses testing facility testing fee testing fixture testing for bug testing ground testing ground testing ground testing homogeneity testing instrument testing jig testing laboratory testing level testing machine

觉斋网英汉汉英翻译词典包含1679246条英汉翻译词条，基本涵盖了全部常用英语单词及常用语的翻译及用法，是英语学习及翻译工作的有利工具。