英语词汇“thumb index”是什么意思，“thumb index”的读音、用法及例句翻译-烛光网

词汇	thumb index
释义	thumb indexn.Printing（名词）【印刷术】 A series of rounded indentations cut into the front edge of a book, each labeled, as with a letter, to indicate a section of the book.拇索引：在书的前部边缘挖出的一系列圆形缺刻，每个缺刻上有一个表明本书的一部分的字母 Related Forms继承用法thumbʹ-in'dex AHD[thŭmʹĭn'dĕks] （动词）
随便看	scrappy scraps scratch scratch scratchboard scratchcard scratch card scratched scratches scratch hit scratchier scratchiest scratching scratch line scratch pad scratchproof scratch sheet scratch test scratch ticket scratch ticket scratchy scrawl scrawled scrawling scrawls

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