Why did you do that, you cretin?
你为什么这样做，你这个傻瓜？
牛津词典
Why else would I have chosen such a disreputable looking cretin?
为什么我选中的其他人象个白痴?
电影对白
Why did you do that, you cretin?
你为什么做那事, 你这个笨蛋?
期刊摘选
Why did you do that, you cretin?
你为什么这样做，你这个傻瓜？
《牛津高阶英汉双解词典》