沙沙的

例句：

1. 1.The cat scratched the wallpaper as it slept.
   猫在睡觉时挠墙。
2. 2. The child scratched his head in confusion.
   孩子困惑地挠着头。
3. 3. The old man scratched his back with a needle.
   老人用针挠背。