These are accorded great and prompt attention and many will go into permanent files.
这些信件立即受到极大关注，许多还被永久存档。
namely the heading, the inside address, salutation, the subject heading, the body of the letter, the complimentary close, the senders signature and identification, the designation, etc.
即：信头，信内地址，称呼，事由主题，正文，结尾套语，发信者的签字和身份，头衔等。
plan your letter properly so that it flows from the first paragraph to the last logically as in a speech.
适当地计划好你的信，犹如一篇演讲稿似的，使之从第一段到最后一段读起来不仅流畅且合乎逻辑。
Be consistent in the style of the letter rather than wander between one style to the other in the same letter, otherwise the letter may sound most messy.
一封信的文体要前后一致，否则这封信就显得非常散乱。