When filling in the TEMU product manual, you can follow the following steps:

1. Conclusion: First, clarify the conclusion of the product manual, that is, you need to inform consumers about the main features and uses of the product. For example, you can write the name of the product, its functions and main advantages, etc.

2. Explanation of reasons: Next, explain why the product has these characteristics and uses. You can provide information about the technical parameters, manufacturing process, raw materials and processes of the product to support the conclusion given. These explanations should be concise and easy for consumers to understand.

3. Content extension: In order to enrich the content of the product manual, you can extend the content at the end and provide some additional relevant information. This includes understanding how to use the product, care and maintenance, etc. You can also provide some precautions or warnings to ensure that consumers use the product correctly and avoid any adverse consequences.

It should be noted that when filling in the TEMU product manual, you should follow the principle of conciseness and clarity, write in plain language, and avoid using overly professional terms. At the same time, you should also ensure that the information provided is accurate and complete to meet the needs and expectations of consumers for the product.