Look what you have done!
这是较温和责怪人家的说话,称不上是骂人的话,相近的句子还有:
Look what you did !
This is your fault. 这是你的错.
This is your doing. 这是你做的好事.
想加强一点语气,不妨加多句：You stupid idiot! Look what you have done! 你这个笨蛋白痴,看你做过些什么!
对话
Mother:I just cleaned the apartment an hour ago. Look what you have done!
Daughter:Relax! It doesn't look that bad. I've lost something important.
Mother:I'll help you look. What have you lost?
Daughter:I've lost my glasses. I can't see them anywhere.
Mother:You just need eyes in the back of your head.
Daughter:Thank you!
母亲：我刚在一小时前才清洁完房间。看你做过什么！
女儿：放心吧！不是你看得那么糟，我遗失了很重要的东西。
母亲：我来帮你找，你遗失了什么?
女儿：我遗失了眼镜，到处都找不到。
母亲：看来你的后脑需要长对眼睛了。
女儿：谢谢！