他摔倒时额头碰在了路边镶边石上.He hit his forehead against the kerb when he fell.他跌倒时,前颚撞在了道路的边石上.He hit his forehead against kerb when he fell.汤姆跌倒时,他的额头撞在路边的镶边石上.Tom hit his forehead against the kerb when he fell....
The health officials placed the ship’s crew in quarantine.卫生官员将该船的全体船员隔离, 进行检疫。No mammals other than people may enter the country without lengthy quarantine.除人之外，所有的哺乳动物进入这个国家都必须经过长期隔离。The dog was kept in quarantine for ...