stamp可数吗

　　The project has the government's stamp of approval.

　　工程已获得政府批准。

　　Could I have three first-class stamps, please?

　　请给我拿三张第一类邮件的邮票。

　　Please enclose a stamped addressed envelope to get your test results.

　　请附姓名地址邮资俱全的信封，以便把化验结果寄给你。

　　Parliament is seen as a rubber stamp for decisions made elsewhere.

　　议会被看作橡皮图章，只会批准他人的决定。

　　Her success has stamped her as one of the country's top riders.

　　她的`成绩表明她是全国最出色的骑手之一。