Explain why you write the email, or report the updates of the issue you both concern, or state the information you want to confirm, or raise questions you ask for help or clarify CLEARLY.

邮件正文用来解释你写这封邮件的用意，告知对方你们共同关心事情的最新情况，陈述你先要和对方确认的信息，提出问题寻求帮助或者希望得到对方进一步解释……所有这些的统一要求就是要清楚明确。

youdao