scouring stone

例句：

1. 1.The old house needed a thorough cleaning to remove all the grime and dirt.
   这所老房子需要彻底清洁以去除所有的污垢和灰尘。
2. 2. The scouring stone was used to polish the wooden floor.
   擦洗石被用来擦亮木制地板。
3. 3.The scouring stone is essential for removing tough stains from clothes.
   擦洗石对于从衣物上去除顽固污渍至关重要。