octavo
octavo[ɒkˈtɑːvəʊ, -ˈteɪ-](缩略词: 8vo)(pl. -os)- a size of book page that results from folding each printed sheet into eight leaves (sixteen pages)
八开本;八开
■a book of this size
八开本的书
语源- late 16th cent.: from Latin in octavo 'in an eighth', from octavus 'eighth'
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