a set of stamps

• 一套邮票

a set of stamps的用法和样例：

例句

1. Switzerland issued a series of two pingpang stamps.
   瑞典曾经发行了两张与乒乓球有关的一套邮票。
2. I'd give my right arm for that last stamp I need to complete the set.
   为了配齐这套邮票，我愿不惜代价买下那一枚。