The first train to Green Hill leaves at 6:28...这是一道英语专四听力题。
The first train to Green Hill leaves at 6:28. There is a train every hour on the hour and every 28 minutes passed the hour.
问:When does the next train leave?
答案:7:00
参考答案:每个正点和每小时的28分都有车发出
所以下一班是正点的