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n.
隅角；拱頂石；[印刷術] 版楔
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vt.
以楔子固定或提高
Noun:
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expandable metal or wooden wedge used by printers to lock up a form within a chase
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the keystone of an arch
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(architecture) solid exterior angle of a building; especially one formed by a cornerstone
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以下內容獨門構思，受學術著作權養護養護，圖片侵權必究
海詞英語詞典，十二年牌子
美
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