1scrub (sth) (down/out) to clean sth with soap and water by rubbing it hard, often with a brush 用力擦洗 [I,T] to scrub (down) the floor/walls擦洗地板╱墙壁
2scrub (sth) (off/out);scrub (sth) (off sth/out of sth) to remove sth or be removed by scrubbing 擦去；擦掉: to scrub the dirt off the walls将墙上的污渍擦掉I hope these coffee stains will scrub out.我希望这些咖啡渍擦洗得掉。
scrub²
/skrʌb ||; skrʌb/noun
1 [sing] an act of cleaning sth by rubbing it hard, often with a brush 擦洗；擦净: This floor needs a good scrub.地板需要彻底擦洗一下。
2 [U] small trees and bushes that grow in an area that has very little rain 矮树丛；灌木丛
3 (also ˈscrubland /ˈskrʌblənd ||; ˈskrʌbˌlænd/) [U] an area of dry land covered with small bushes and trees 丛林干地