1. letterhead: The address and date of writing a letter are usually written in the upper right corner of the letterhead. In correspondence between friends who are familiar with each other, the address of the writer can often be omitted. The address is generally from small to uppercase, such as house number, street name, city (county) name, province name and country name (postal code is usually written after the city name). There are usually two ways to determine the date: month, day, year or day, month and year.

2. Address: The address given by the writer to the recipient is usually followed by a comma.

3. body: the main part of the letter, that is, what the writer wants to express. Writing requires fluency, clear hierarchy and clear meaning.

4. Conclusion: Compliments at the end of the letter, such as "good wishes" and "greetings", are the conclusion.

5. Signature: Generally, you should sign your name in the middle right position at the bottom of the conclusion. The signature should be handwritten, even if it is a printed letter, you should sign it at last.