2. If something new appears in your research results, which is difficult to explain with other people's theories, then you can put forward your hypothesis theory to explain something new in the experiment, and you must be able to justify yourself.
3. Consider other explanations of the research results. Although we should remain objective, it is easy for us to focus only on those explanations that meet our prejudices (expectations). It should be remembered that the purpose of research is discovery, not proof. It is easy for us to turn research into proving our prejudice (expectation) instead of discovering facts. When writing a discussion, you should carefully consider all the explanations of the research results, rather than focusing only on those that meet expectations.
4. Put forward the limitations of the research. All studies have limitations. The fatal limitations of some studies will hinder their publication. However, even the research in the most prestigious journals has its limitations. The author points out the limitations of his own research, which is much better than being pointed out by peer review or readers.
At the end of the discussion, you should summarize and tell others several main results of your research.