spiral notebook
noun [ C ] uk/ˌspaɪə.rəl ˈnəʊt.bʊk/ us/ˌspaɪr.əl ˈnoʊt.bʊk/
螺旋装订笔记本
a book of paper for writing that is held together by a wire that curves around and around through small holes at the edge of the paper
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