短语词组短语at t that time 在那时at about that time 大概在那个时间If at that time 如果当时At that time called 那个时候打电话;当时叫做At that time see 到时候见At that time conventions 当时的约定At that time I 那时的我Indicating At That Time 说明在那个时候 返回 at that time