a scrap of paper

例句：

1. 1. He scribbled a few notes on the scrap of paper.
   他在这张纸的边角处潦草地写了几行字。
2. 2. She found a piece of paper in her purse and unfolded it.
   她在钱包里找到了一张纸，展开后发现是一张地图。
3. 3. The teacher asked us to write down our ideas on a scrap of paper.
   老师要求我们用一张纸条写下我们的想法。