sandpaper

名词 sandpaper:

1. stiff paper coated with powdered emery or sand
   同义词：emery paper

动词 sandpaper:

1. rub with sandpaper
   同义词：sand

1. Before painting the wood, roughen the surface with sandpaper.
   油漆木器前，先用砂低把表面磨毛糙。
2. She rounded off the corners of the table with sandpaper.
   她用砂纸把桌角打磨光了。