Once the argument is established, go back and take possession of the material. First, we should possess the material and the real material of the object of study. For example, if you want to study a writer, several works of a certain stage, you will use these works to conduct in-depth and meticulous study to further determine their arguments. If your paper is a report, not purely theoretical, and is written in the form of experimental report, investigation report and summary, then your investigation materials and experimental materials should also be possessed.

People often bow their heads and take notes. Ye's ink-wash mobile phone suddenly rings. She quickly pushes it...