A woman standing in front of a painting of a fire

The teacher stands on the podium，Carefully explain the knowledge in the textbook，Her gaze was glued to the textbook，The lips are slightly open，Spit out every word clearly，Occasionally, he gently pointed his hand to the words on the board，Remind students to pay attention to the lecture。Her figure looked particularly serious in the light，As if in this world，Only she and the textbook exist。