| 单词 | cylindrical spiral |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔spiral binding〕A binding for notebooks and booklets in which a cylindrical spiral of wire or plastic is passed through a row of punched holes at the edge of a tablet.螺旋装订：一种装订笔记本及小册子方法，用圆柱状螺旋形金属线或塑料线穿过本子边缘的一排打孔而将其穿订起来美国传统 |
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