印章戒指

例句：

1. 1. The stamp on the envelope is from our local post office.
   信封上的印章是我们当地的邮局的。
2. 2. The stamp collectors are always eager to find rare stamps.
   邮票收藏家总是渴望找到稀有的邮票。
3. 3. The stamps were used to mark the boundaries of the land.
   这些邮票被用来标记土地的边界。