a summer vacation的用法和样例：
- We have blissful memories of a summer vacation.
- Do you enjoy have a summer vacation on the beach?
- For years, when I lived in Saratoga Springs, I couldn't take a summer vacation.
- We will go to school tomorrow, is really a summer vacation of delectation!
- Moreover, I was having my summer vacation at that time, so this was like a summer job to me.