我坐在明亮的教室里,望着窗外高高的烟囱吞吐的烟雾,最后消散在空中。煤是多么的伟大,它无私地燃烧自己,为人类奉献光和热……它让我想到了教书育人的老师、日晒雨淋的军人、温柔忠诚的“白衣天使”…… I sat in a bright classroom, watching the smoke from the tall chimneys outside the window, and finally dissipated in the air. How great the coal is, it selflessly burns itself and gives light and heat to mankind... It reminds me of the teachers who educate people, the sun and the rain, the gentle and loyal “white angels”...