收到: receive; get; achieve; obtai ...内: inner; inside; within含: keep in the mouth可疑: suspicious; dubious; doubtfu ...粉末: powder; flour; stive; smalls的: 4次方是 The fourth power of 2 i ...邮件: mail; post; postal matter粉末的: pulverous接收的邮件: mail in内送的邮件: incoming删除的邮件: deleted items外送的邮件: outgoing易成粉末的: pulverulent粉末的胃制剂: powdered stomach preparation可研成粉末的: pulverzable易碎成粉末的: powdery能收到信的邮箱: e-mail address地址不详的邮件: blind mail堆积如山的邮件: a mountainous pile of mail尚未了结的邮件: unsettled mail使用新的邮件订阅: stevii: using the new mail subscription要求答复的邮件: mail with reply requested已经发送的邮件: sended/delivered mails邮资不足的邮件: under stamped post增强保密的邮件: pem privacy enhanced mail