书信格式： 开头称呼：称呼前加Dear+人+逗号 段落首句可以顶头写，顶头写的时候段落间可以空一行，看着清爽（比如例文1，2）；首句也可以空两格，段落间不空行（例文3）。 结尾： 最后一句话，比如期待您的回信：Looking forward to your reply. 或者Looking forward to hear from you. 最下面写自己名字时候，先写：Yours sincerely, 或者Sincerely yours, 如果是朋友的话，就写Yours, 另起一行再写自己的名字。 1.（正式、不熟的） Dear Professor Williams, I feel really delighted and honored to be invited by you to give a presentation to the foreign students, and I will certainly be careful to prepare for the making of it. To let the overseas students know much about our Chinese culture, I think that my presentation is supposed to include at least two key points. On the one hand, I will put much stress on the history of China. You must know that our China is an ancient country with a pretty long history. On the other hand, my second strong point should be put on the main diet in China. The reason is that Chinese people in different regions have totally different inclination to choose food and Chinese food everywhere is quite delicious. Those two points are what I would like to emphasize, and I would like to know of your opinions on this and I wish you could give me some further ideas on it. I am looking forward to your reply. Yours sincerely, Li Ming 2. Dear Mr. Smith, On behalf of the Student Union, I am sending this e-mail to you to invite you to act as our judge of English speech contest to be held in our university on June 5. To be more specific, our contest is on the topic of how to embrace tough challenges in this digital era. During this competition, ten participants will deliver their speeches with respect to this topic. It is widely acknowledged that you are a top expert in this field, so we sincerely hope that you can accept our invitation. For further information, please call me at 9999999. We are looking forward to your reply and arrival. Sincerely yours, Zhang Wei 3.（比较熟的人） Dear Peter, Best Wishes,或者Yours,或者All the best! Li Hua 本文来源：https://www.wddqw.com/doc/df510afc85868762caaedd3383c4bb4cf7ecb7cc.html