in and sat in the back seat.the whole lecture hall could hold about a thousand people, and by 10:20, the lecture hall was almost full.not only the seats for students are full, but also the seats in t...tly!in the smoke and dust, the human figure of the mask is invisible instantly, approaching Tianhe at a very fast speed.at a moment like this, there is smoke and dust all around, and there is a consta...