I have to teach the same course books several times in the summer holiday camp, which is sometimes boring and not well-paid, but by and large, I am quite delighted in being with young people.
2
我正在写青少年暑假夏令营的第一篇日记。
This is the first diary I'm writing in the youth summer camp.
3
他在暑假时参加了一个夏令营。
He joined a summer camp during the summer vacation.