说：Sorry,I don`t know.微笑着摇头，然后礼貌地离开.
sorry,i can't understand much english
sorry, i have no idea.
i am so sorry,my english is poor,i can't understand you
什么也听不懂怎么说呢？至少应该回答一句sorry，然后耸肩，摊开手，摇摇头，做出无奈的表情。
