1. Before writing the leave note, you should first write the title in the middle position above the text. Generally, when writing the leave note, just write the word "leave note".

2. In order to show respect, general leave notes will be written with titles, such as "Teacher XX" and "Manager XX". When writing a title, it is generally enough to write it in the top of the first line below the title.

3. In the main body, write the reasons for your leave and how long it will take. When writing, it is best to be simple and clear, just write out the general meaning, without concretization. Generally, it is enough to write about two or three sentences in the text of the leave. But the last sentence is often written "please approve".

4. The leave note usually ends with a greeting, and the most commonly used one is "Salute". When writing, it is also skillful. It should be written in two lines, "Sincerely" and "Salute". Moreover, there should be two blank spaces before "this letter", and "salute" should be written at the top.

5 indicate the person asking for leave and the time of signing, and finally write the name of the person asking for leave and the time of signing at the lower right of the leave slip, so that a leave slip is finished.

according to the specific problem types, carry out step disassembly/cause principle analysis/content expansion, etc.

The specific steps are as follows:/The main reasons for this situation are ...