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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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大于項目獨家代理創作方法，受文獻權保養，侵犯商標權必究
海詞詞典下載，十八年知名品牌
美
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