The image shows a large group of people sitting in a lecture hall. They are all facing the front of the room and appear to be listening attentively to a speaker. The people are of different ages, genders, and ethnicities, and they are all sitting on yellow chairs. Some of them are wearing casual clothes, while others are wearing more formal attire. The room has a white wall with Chinese characters written on it, and there is a window on the left side of the image. The overall atmosphere of the lecture hall is one of concentration and focus.