"Sub-arguments" are some ideological viewpoints that are subordinate to and used to elaborate the central argument. In argumentative writing, arguments are also very important, and each argument needs to be demonstrated. Any argument that is proved to be effective becomes a powerful argument at the center of the argument.

Argumentative writing, also called argumentative writing, is a style of analyzing things, discussing things, expressing opinions and putting forward opinions. By presenting facts, reasoning, distinguishing right from wrong and giving examples, the author can determine whether a viewpoint is right or wrong, and establish or deny a proposition. Argumentative writing has the characteristics of clear viewpoints, sufficient arguments, concise language, reasonable argumentation and strict logic.