每日一句:I'm sorry I can't answer the question.

I'm sorry,I can't answer the question. 很抱歉我不能回答这个问题.

It's difficult to say. 这很难说.

Do you think so? 你这样认为吗?

I'd rather not say anything about that. 对于这一点我还是不说什么的好.

I'm afraid you'd have to ask Dr.Brown about that. 这件事你恐怕得问问布朗医生.