A：I think that’s settled.
我想就这么决定了。
B：I'm tired of your cut-and-dried opinions. Who do you think you are!
我烦死了你那些陈词滥调，你以为你是谁呀?
A：How dare you speak to me like this.
你敢这样对我说话。
B：Why not?
为什么不敢?