英语词汇“sunken cord”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	sunken cord
释义	sunken cord noun or sunk cord : any of several cords that lie in grooves across the backbone of a hand-sewn book — compare raised band
随便看	pterygomandibular pterygopalatine pterygopalatine fossa pterygophore pterygopodium pterygoquadrate pterygosomal pterygosomidae pterygota pterygote pterygotous pteryla pterylographic pterylographical pterylography pterylological pterylology pterylosis pteryx -pteryx PTFE ptg ptil ptil- ptile

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