It's not like the lesson is in the same place at the same time every week
「毎週月曜日の１限の授業はXXXというような感じではなく、今週は月曜の１限で、来週は水曜の３限ですというように、毎週行われる授業の時間が決まっているわけでは無い」
"It's not like 1st period's lesson is from xxx on Monday every week but more this week Monday is 1st period, next week Wednesday is 3rd period, so it's not like there's a specific time for every week's lesson" など
日本 
