右上角写日期- 开头"Dear","To","To whom it concerns" = 一般给政府/比你级别高得写"等等 写完名字点逗号- 另起一行 空两个格 写正文- 落款 = "sincerely yours" = 给级别高的,很正式的；"yours truly" = 朋友； "l...