| 摘要 |
A bookmark attaches to a book by encircling the book's pages with a loop within the book's covers. The encircling loop is created by bending a length of cord or other thin material into a U-shape, then joining two pairs of points on the legs of the "U" with two stops. A thin card attached to the closed end of the "U" serves as a marker. The upper stop is closest to the closed end of the "U" and is centered against the upper end of the book's binding. Each leg of the "U" is laid as tightly against the binding as possible along a fold between a different book cover or page and adjacent page. The lower stop is closest to the open end of the "U" and is tightened against the lower end of the binding to secure the loop around the pages. The loose ends of the "U" may then be folded upward and secured between book pages.
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