In this paper,the concepts and properties of E_mail including the commands and usage are described.The impact of E mail on libraries is explored as well.是什么意思_In this paper,the concepts and properties of E_mail including the commands and usage are described.The impact of E mail on libraries is explored as well.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句