Hello class to listen carefully, about 30 minutes to listen to the focus. As for the job, work hard, willing to spend time, as if a lot of time reading after school do not need the tutorial is simply what the words in the chaos of money, no use, only costs money 上课认真仔细要听啰，大约要听30分钟的重点。至于作业，认真做，不惜花费时间，至于课后话大量时间的看书根本就不需要，补习什么的根本就是在乱话钱，没有什么用处，只能费了钱。