Mr. Chen Yidong is a young and middle-aged teacher in his forties or so, but he looks much older than his real age. His temples are gray and his eyes are wrinkled. He looks like a teacher full of wind and frost. He should be a very conscientious teacher, just standing in front of the blackboard for many years, absorbing dust, and so on. Maybe it will not be maintained, so it will be a lot of vicissitudes.

"Sulei? Who are you from? What's the matter with her?" Although he saw Han Zi's good looks, he looked at them doubtfully because of his professional sensitivity and vigilance, and asked them...