基本解释警犬词组短语短语blood -hound dog 侦探犬英英字典柯林斯英英字典 A bloodhound is a large dog with a very good sense of smell. Bloodhounds are often used to find people or other animals by following their scent. 专业释义生物学血????，大猎犬，大警犬寻血猎犬