建议信

Dear Mr./Ms./Dr./Prof.xxx/Sir or Madam/students,

As a/an student/passenger/customor, I am very glad to hear that you seek to receive suggestions/feedback/advice about the lectures/service. My opinions are as follows.

To begin with, I do feel that it would be beneficial if we could AAA. In addition, BBB is of great importance. Furthermore, it is highly recommended that CCC.

I would appreciate it if you take my suggestions into consideration. Best wishes! (If there is anything else that I can help with, please feel free to contact me.)

Yours sincerely,
XXX

邀请信

Dear Mr./Ms./Dr./Prof.xxx/Sir or Madam/students,

A/An event/ceremony/contest/banquet/party/academic conference…is planning to be held on TIME in/at PLACE. On behalf of the Student Union/our school/our club…, I am writting this letter to cordially invite you to be our distinguished guest/to attend it.

The event mainly consists of the following parts. First of all, AAA would be arranged. After that, we will BBB. In the end, there will be CCC. (如果希望对方承担什么任务的话：And could you please be kindly to do sth? )(如果对对方有一定建议的话:It is advisable for you to do sth.)

We would feel honored by your presence, and please get back to me at your earliest convenience so that we can make arrangement in advance accordingly. (If you have any concerns regarding this, or there is anything else that I can help with, please do not hesitate to contact me.)

Yours sincerely,
XXX

抱怨信或投诉信

To Whom It May Concern/Dear Sir or Madam,

I am writting to complain/to file a complaint about the service I recently received/the product I recently purchased.

The focus of my complaint is about the poor quality. Unfortunately, XXX(具体描述问题，我刚打开他就坏了。。。嘤嘤嘤), and it really made me very disappointed. In order to solve this problem, I strongly expect you to do sth before SOMETIME, otherwise I will seek legal aid or help from a consumer protection agency.

Looking forward to your reply and an appropriate solution to my problem.

Yours sincerely,
XXX

道歉信

Dear xxx,

I am writting this letter with guilt to make an apology for AAA.

The reason why I BBB is that CCC. Therefore, I have no alternative but to DDD. I feel terribly sorry for it. However, I wonder whether I could EEE if you are at convenience.

I am looking forward to your reply. And I apologize again for any inconvenience I hava caused.

Yours sincerely,
XXX

通知告示

Notice
December 25, 2021

Your attention, volunteers are needed for the Winter Olympics.(简短说明目的)

The purpose of this activity is … As a participant, you will be involved in a variety of activities, including …, which can strenghen your organizing ability and the sence of responsebility. Simultaneously, your horizon will be greatly broadened. Those who are interested in this activity may sign up at 12345@abc before TIME.

Come and join us now.

Studens` Union