单词	paper knife
释义	paper knife noun 1 : a knife for slitting envelopes or uncut pages 2 : the knife of a paper cutter Example Sentences Recent Examples on the Web And why is her only luggage a purse, and one of her few airport purchases a paper knife? Ian Rankin, WSJ, 9 Oct. 2020 Word History First Known Use 1789, in the meaning defined at sense 1
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