片语
The First Postage Stamp世界首张邮票
postage stamp problemThe postage stamp problem is a mathematical riddle that asks what is the smallest postage value which cannot be placed on an envelope, if the latter can hold only a limited number of stamps, and these may only have certain specified face valueJeffrey Shallit (2001), The computational complexity of the local postage stamp problem.
postage-due Stamp翻译
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Adhesive postage stamp邮票
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The Postage Stamp邮票
olympic postage stamp奥林匹克邮票