sandpapering

例句：

1. 1. The painter sandpapered the walls before painting them.
   画家在上漆前先给墙壁打底。
2. 2. She decided to sandpaper her room for a fresh look.
   她决定给她的房间重新粉刷一下。
3. 3. The decorator sandpapered the furniture before moving it into the new home.
   装饰师在搬家具进入新家之前先进行了粉刷。