Hello, what you want to ask is why the online training of the 2022 edition of new textbooks for ordinary senior high schools is often not updated. Online training of new textbooks for senior high schools published by People's Education Press is often not updated because of strict screening. Because it is to be posted online for teachers and students to learn, it is very time-consuming to screen out excellent teacher videos, so it will not be updated frequently. It is the website for public training of new high school textbooks in 2022.