a prom trotter的用法和样例：
- That was wonderful. I never thought a prom could be so exhilarating!
- Joan: That's true, but Dillard's is having a prom 3)preview Saturday at 2:00.
- The day before my father died, my mother and I had gone shopping for a prom dress.
- But, eventually, I came begging for a prom dress and she made it without comment.