Two math classes in the afternoon.
It's already cold in winter, but the classroom is warm.
Everyone in Class Three is sleepy, but they dare not anger the math teacher. They can only fight to keep their eyes open, attending class in a state between heaven and hell.
Jiang Nian wears a little hangover, so he's not sleepy.
Li Hua is extremely sleepy. He wants to kneel down and beg himself not to sleep, but then discovers that he can sleep even while kneeling.
Cried.
On the podium, the math teacher is still teaching with varied intonation.
A small question is altered by him. From a single solution at the beginning, the process fills up two whiteboards.
"Ah, when you see this..."
Ma Guojun can't stand it anymore, gets up, and stands at the back of the classroom to listen to the lesson.
As he turns, he gives Li Hua a wink, "Don't just keep fighting, come on! Together!"
Li Hua props his eyes open with his hand and drips a few drops of Fengyou oil into his mouth.