一些同学,白天上课专心听讲,经常向老师提问疑难问题,晚上花较少时间完成作业,早休息.
Some classmate, the daytime listen attentively in class, often ask questions of the teacher knotty problems, evening to spend less time to finish the work, early rest.
另一些同学,白天上课打瞌睡,漏掉了许多要点,到了晚上花教多时间完成作业,熬夜学习.
Some other classmate, the daytime class hits sleepily, a lot of points at night spend more time teaching assignments, stays up late to study.