email          
 noun (also e-mail) uk/ˈiː.meɪl/ us/ˈiː.meɪl/
A1 [ U ]电子邮件系统 
the system for using computers to send messages over the internet
  You can contact us by email or fax. 你可以通过电子邮件或者传真联系我们。 
 What's your email address? 你的电子邮件地址是什么? 
 A1 [ C ]电子邮件 
a message or document sent using this system
  I got an email from Danielle last week. 我上周收到丹妮尔的一封电子邮件。 
 - More examples
 - I'll forward his email to you if you're interested.
 - I'll send you my email address once I'm online.
 - How did people communicate in the days before email?
 - She wondered who'd sent her the mysterious email.
 - This software helps firms archive and retrieve emails.
 
email       
verb [ T ] (also e-mail) uk/ˈiː.meɪl/ us/ˈiː.meɪl/
A2 给…发电子邮件
to send an email to someone
  Email me when you've got time. 有空给我发电子邮件。 
 [ + two objects ] Has he emailed you that list of addresses yet? 他把通讯录用电子邮件发给你了吗? 
 - More examples
 - To contact our Australian branch, email us at info@cambridge.edu.au.
 - You can email cide@cambridge.org to find out more about this dictionary.
 - I'll email my report to you as an attachment.
 - I'll email him later today.
 - She emailed me with the news.