Used or unused postage or revenue stamps, stamp-postmarks, first-day covers, postal stationery (stamped paper), and the like, other than those of heading No. 49.07.

使用过或未使用过的邮票、印花税票、邮戳印记、首日封、邮政信笺(印有邮票的纸品)及类似品，但税目49.07的货品除外。

youdao

And in she went to purchase a postage stamp . Gazing at the small gummed piece of paper she said haughtily to the clerk, "Have I got to stick this on myself ?"

进去后她买了一张邮票，看着这小小带背胶的小纸块她傲慢地问邮务员：“我是否自己贴上这东西？”

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Diagnostics for All, a Massachusetts-based start-up that has developed paper-based diagnostic tests the size of a postage stamp, chose to commercialise its idea in the developing world so as to circumvent America's hideously slow approval process for medical devices.

ECONOMIST: Frugal ideas are spreading from East to West