Today's summary is mainly a summary of the day. What did you do? When and what do you do? What kind of harvest, what kind of reflection, for example, I spent an hour doing math homework. Maybe I have a problem, but I won't. I have detained this question for two hours. I want to reflect on this matter, but it is also meaningful, because my persistence in a problem has finally been achieved. That's what it means.

First, the title is work summary, second, work content, third, work reflection, fourth, work harvest.