During the summer holiday, I attended a summer camp.

暑假期间，我参加了一个夏令营。

During the summer holiday, I went to the beach.

暑假期间，我去了海边。

During the summer holiday, I learned to ride a bike.

暑假期间，我学会了骑自行车。

During the summer holiday, we went swimming every day.

暑假期间，我们每天都去游泳。

During the summer holiday, I went on a trip with my family.

暑假期间，我和家人一起去了旅游。

Tony is going to go to a summer camp during the summer holiday.

托尼暑假要去夏令营。

Don't forget to book in advance because, as you can imagine, everyone goes away from the city during the Summer holiday!

不要忘记提前预订，因为正如你所能想象的，每个人在暑假都会离开这个城市。