Review refers to the process of comprehensive review and analysis of an activity or event after it is over. Refreshing refers to the retraining or learning process in a certain field or skill;

The purpose of the resumption is to sum up experience and lessons, find out problems and advantages, and provide reference for future improvement and decision-making. Refreshing occurs when a person already has certain skills or knowledge and wants to improve, consolidate or update these skills or knowledge through re-learning.