Definition: to rub your skin with your nails, often because you have an itch Level: B2
我的皮肤太痒了，我挠了一整夜。
My skin was so itchy, I was ___scratching all night.
不要挠你的蚊子包！
Don’t ___scratch your mosquito bites!
汉娜若有所思地挠了挠头。
Hannah ___scratched her head thoughtfully.
