1 . school session
school inspector 督学school session 上课期间school 学校
2 . class time
the students do that after their class time behind the scenesbehind - the - scenes meetings and tours ., 在上课期间, 幕后会议和参观之后 , 学生们才进行调查.
3 . class sessions
May I record the class sessions at Shin Dance ?, 我可以在上课期间录像吗?
4 . during the lesson
时用 on for twenty weeks 二十周 during the lesson 上课期间in the morning 在.