It is hard to concentrate with Boris scraping away on his violin.鲍里斯拉小提琴发出的刺耳声音让人很难全神贯注。

Scrape away the snow with your boot.用你的靴子把雪蹭掉。

We scraped the paint away with our pocket knives.我们用小折刀刮掉那层油漆。