电子邮件的结构是由消息头和消息体组成的。
An E-mail message's structure is composed of the message header and the message body.
头回你的房间，并检查您的笔记本电脑和阅读电子邮件。
Head back to your room and check your laptop and read the email.
老麦克唐纳有一农场电子i e io.在他的农场有四头猪，i - e - i - o。
Old MacDonald has a farm. E-i-e-i-o.On his farm he has four pigs, E-i-e-i-o.
老麦克唐纳有一农场电子i e io.在他的农场有四头猪，i - e - i - o.
Old MacDonald has a farm.E-i-e-i-o.On his farm he has four pigs,E-i-e-i-o.
车用摄像头，主动式安全系统，车用电子产品。
车用摄像头，主动式安全系统，车用电子产品。
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