stamp down

基本解释

Hands up, hands down, stamp stamp stamp.
手擧高，手放下，跺跺腳。
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You can then place the stamp with the face turned down on a bowl of warm water.
那麽您可以與麪的郵票打開溫煖一碗水了。
You could add a decorative stamp and affix it upside down - a custom that means 'I love you'.
你也可以倒貼張裝飾郵票，這意味著“我愛你”。

I've seen students photocopy exams down to the size of a postage stamp.
我曾看到過學生將考試內容複印到,一張郵票大小的紙上。
麻省理工公開課 - 固態化學導論課程節選

We know full well that if he gets a chance, Governor Romney will rubber-stamp the top-down agenda of this Republican Congress the second he takes office, and we cannot afford that future.
WHITEHOUSE: Remarks by the President at a Campaign Event -- Miami, FL
We know full well that if he gets a chance, Governor Romney will rubber-stamp the top-down economic policies that have been promoted by his congressional allies, including his running mate -- who will be debating tonight.
WHITEHOUSE: Remarks by the President at a Campaign Event in Miami, FL