You learned how to write business and casualheadings and salutations, state your purpose, make a request, set expectations for a response, and wrap it up with a Very Truly Yours.

• 由于它是我们在线生活如此重要而又经常被忽略的组件，因此我暂时放下谈论网络，集中讨论一下让您的电子邮件交流更有效的简单方法。