Email是可数名词，表示一封电子邮件时用an Email，多封电子邮件用some Email。例句：Multiple email addresses have been added.增加了多个电子邮件地址。
1、Can you explain how the email system works?
你能说明一下电子邮件系统的工作原理吗？
2、Each student has been given his or her own email address.
每个学生都得到一个自己的电子邮件地址。
