1. to scratch one’s chin with the index finger 用食指勾了一下某人的下巴
2. Scratch out his name from the list. 把他的名字从名单上划去。
3. Sweep floor, aspiration regularly, prevent sand or attrition sex dirt piles up and scratch floor surface. 定期清扫地板、吸尘，防止沙子或摩擦性灰尘堆积而刮擦地板表面。
英英解释
n.
1. an abraded area where the skin is torn or worn off
2. a depression scratched or carved into a surface
3. informal terms for money
4. dry mash for poultry
5. a harsh noise made by scraping
6. poor handwriting
7. an indication of damage v.
1. cause friction
2. cut the surface of; wear away the surface of
3. scrape or rub as if to relieve itching
4. postpone indefinitely or annul something that was scheduled
5. remove by erasing or crossing out or as if by drawing a line
6. gather (money or other resources) together over time
7. carve, cut, or etch into a material or surface
