擦丝 Traditional form: 擦絲 Pinyin (reading): cāsī Definitions: to grate (cheese, carrots etc); to shred Characters: 擦 - to clean, to erase, to polish; a brush 丝 - silk, fine thread; wire; strings Traditional characters: 擦 - to clean, to erase, to polish; a brush 絲 - silk, fine thread; wire; strings