The date when the Trademark Bureau serves the supplementary notice to the party concerned by post shall be the post stamp date of receipt by the party concerned of the said notice.

商标局以邮寄形式向当事人送达补正通知的日期，以当事人收到补正通知的邮戳日为准。

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In post offices, virtually every document that's passed across the counter is stamped with a rubber stamp.

在邮局，基本上每个交到柜面的文件都会用一个橡皮图章盖上印。

《柯林斯英汉双解大词典》

Remember to stick a stamp onto the envelope before you post it.

寄信之前要记住在信封上贴邮票。

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Competition from email and internet services will prevent Jersey Post from putting up stamp prices too high, according to the company boss.

BBC: Jersey Post boss says internet keeps stamps cheaper

So why would the U.S. Post Office create a stamp with a photo of the Statue of Liberty that is really not the Statue of Liberty?

FORBES: Do You Trust the Post Office?

The Belgian post office promises a new stamp by October next year, with a face value in both Belgian francs and euros.

ECONOMIST: Befuddled in Euroland