A spiral-bound book or notebook is held together by a wire (or plastic) that is coiled round and round like a spring, threaded through a row of small holes punched down one edge of the pages.

A spiral-bound book or notebook一本線圈裝訂的書或筆記本 is held together by a wire (or plastic)是靠一條金屬線（或塑膠線）固定住的，that is coiled round and round like a spring那條線像彈簧一樣一圈一圈繞著，threaded through a row of small holes穿過一排小孔，punched down one edge of the pages那些小孔打在書頁的其中一邊。

You have certainly used one — most cheap notebooks are made this way. The reason people like them is practical, and that is usually why the word is used: a spiral-bound book lies completely flat when open, and you can fold the cover all the way back so the book takes up only half the space on a desk. That makes it the usual choice for notebooks, sketchbooks, cookbooks, wall calendars, and manuals meant to be propped open while you work with your hands.

You have certainly used one你一定用過，most cheap notebooks are made this way大部分便宜的筆記本都是這樣做的。The reason people like them is practical大家喜歡它的原因很實際，and that is usually why the word is used這通常也是為什麼會用到這個字：a spiral-bound book lies completely flat when open線圈裝訂的書打開時可以完全平放，and you can fold the cover all the way back而且你可以把封面整個往後折，so the book takes up only half the space on a desk讓書在桌上只占一半的空間。That makes it the usual choice這讓它成了常見的選擇 for notebooks, sketchbooks, cookbooks, wall calendars像是筆記本、素描本、食譜、掛曆，and manuals meant to be propped open while you work with your hands還有那種要一邊動手做事一邊攤開撐著看的手冊。

The word is nearly always an adjective before a noun, and it is the ordinary word for it in shops and printing — if you order printing, 'spiral-bound' is one of the choices you tick.

The word is nearly always an adjective before a noun這個字幾乎都是放在名詞前面當形容詞，and it is the ordinary word for it in shops and printing而且在店裡和印刷業裡這是一般會用的字——if you order printing如果你去訂印刷，'spiral-bound' is one of the choices you tick『spiral-bound』就是你會勾選的選項之一。

The downside people mention is that the wire bends out of shape in a bag and pages tear free.

The downside people mention is大家提到的缺點是：the wire bends out of shape in a bag那條線放在包包裡會被壓變形，and pages tear free而且書頁會被扯掉。