俚语口头禅:笨蛋 A stupid person

【句子对照】
You knucklehead! How could you have mixed the dog food with the cereal?
你这个笨蛋！你怎么会把狗食和谷类混到一块呢？

【关键俚语】
knucklehead
英：A stupid person
中：笨蛋