网友回答：
i thought i should go over all those things my teachers taught in the previous term so that i could have a better understanding of them. then i thought i should take up some forms of exercise，the summer vacation had come round again. i was happy that i c
温馨提醒：随时光变迁，文中所陈述观点；准确性、难免有所变动，因此文中观点仅供参考。
