What does a glance in class mean?

Wonderful picture. A glimpse refers to the fleeting image, refers to the general situation of some scenes, and a glimpse in class refers to the wonderful pictures that appear in the classroom. At the same time, the word "a glimpse" is also regarded as the laudatory name of "photography of things", such as "a glimpse of China" and "a glimpse of world heritage". , which contains modesty, but also literature and art.