What is the significance of choosing this direction first? Where is the value? In other words, your paper is "useful" to society and academics. Thereby strengthening the confidence of the "theory."

So, what is the most valuable thing? Establish a clear and tenable "argument".

Thesis is a process of repeatedly demonstrating the central argument, and using a large number of screened materials to illustrate your point of view. It can be said that writing a thesis is not difficult. The difficult thing is to collect, sort out, summarize, discover and refine the materials in advance. It is necessary to carefully collect and study their ins and outs and their relationship in time (historical evolution) and space (regional conditions). If the previous "thinking" is the design process, collecting materials is the preparation process, and only the construction is left.

The length of a paper is limited, so it is impossible to have a wide discussion. You can only study one or a few questions, and don't talk too much.

For example, I only speak the word "enterprise" in the southern dialect. Because most northerners don't understand its original meaning, it is meaningful to study it. By collecting materials, we can know which dialects call "standing on tiptoe" as "enterprise", and "enterprise" gives birth to attempts, hopes, treats enterprises, penguins, achievements, admiration, hopes, desires, waiting for enterprises, and so on. Quote authoritative materials such as Shuo Wen Jie Zi again, and demonstrate it repeatedly to make the argument stand. Then, from this deduction, the conclusion that "dialect and Putonghua are a process of integration" is drawn. A little expansion, citing some relevant historical materials to convince readers, then your paper will be successful!