短语词组短语send sth by mail 邮寄to send sth by mail 寄达send by registered mail 挂号nto send by mail 邮递to send by mail 邮递send the parcel by mail 邮寄包裹send a letter by E -mail 用电子邮件发信send a document by E -mail 用电子邮件发文件 返回 send by mail