sander
🇺🇸
/ˈsændər/
🇬🇧
/ˈsændə(r)/
A machine that smooths surfaces, like wood, by rubbing them with rough parts.
The carpenter used a sander to make the wooden surface smooth before painting it.
木匠使用砂光機使木質表面在塗漆前變得光滑。