Get a paper and pencil and draw a box at the center of the page.
拿出纸和笔，在纸的中心画一个盒子。
A small roll of paper fits in the center of the pencil and is drawn out through a slit in the side.
小小的一卷纸恰好放在铅笔的中央部分，纸可以通过在铅笔边的缝抽出来。
A small roll of paper fits in the center of the pencil and is drawn out through a slit in the side.
小小的一卷纸恰好放在铅笔的中央部分，纸可以通过在铅笔边的缝抽出来。
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