First of all, the reasons for leaving can be expressed in a way acceptable to everyone on the basis of ensuring truth and objectivity. If the reason is misleading, try to express it euphemistically.
Secondly, it is no problem to talk about the resignation factors that everyone can understand, such as professional mismatch, illness, the need of career planning, and the influence of company structure changes.
And try to use some force majeure reasons, such as physical reasons, study and study, family problems and other reasons why employers are embarrassed to obstruct.
Of course, you can also choose such reasons, such as the "big pot" that prevents you from playing, the long journey to work, the wrong major, marriage, illness, vacation and other factors that people can understand, and try to tell the truth.
Finally, don't say anything embarrassing to the company. First of all, we must affirm the management system and interpersonal relationship of the company and try our best to leave a good impression on the boss!
I hope my answer can help friends in need.