I can't stand that，do you know why I'll punish you sternly？
太不像话了！我要严厉惩罚你，你知道为什么吗？
I don't know.
我不知道。
Because you beat the younger child. I'll never let it happen again.
因为你打了比你小的孩子，我绝不能允许这种事情再次发生。
But I'm younger than you, you can't beat me any way！
可是，我也比你小啊，你也不能打我！