1.flatly

adv. 断然地；平平地；直截了当地

仿He flatly turned down the proposal.

2.trot

n. （人）慢跑；马小跑的步态；小跑的马蹄声；刚学步的小孩；老太婆；腹泻；（学生作弊用的）译文对照本

vi. （马）小跑；（人）慢跑；快步走

vt. 使小跑；使快步走

仿The children trotted out the room.

3.Summary

Harry met Colin on his way to Quidditch. Colin kept pestering Harry to ask a lot of questions about Quidditch. Harry couldn't get rid of colin.So he answered Colin'questions. Finally Colin told Harry that he was going to watch the training of Harry.