英语词汇“第二类邮件”的翻译、意思、用法、释义-英汉汉英词典

单词	第二类邮件
释义	第二类邮件phr.second class matter〈美〉第二类邮件（指定期邮寄的不封口的报纸、杂志等）
随便看	object distance objected objecteering objecteering 面向对象设计工具 object, end or purpose object exchange object existence rights object expression object field object file object finder object-finder object focal length object focus object function object galss object glass object-glass objectglass object glass (objective) object glass; slide glass object graticule object handling program object hierarchy objecthood