a piece of scrap paper的用法和样例：
- I made some notes on a piece of scrap paper.
- " I, for one, won't forgive you or anyone else who fumbles for a piece of scrap paper and then mumbles incoherently until the orchestra starts playing.
- The boy is daubing a piece of paper with red ink.
- Would you please give me a piece of paper?
- Please pass me a piece of paper handkerchief.