对不起，我不知道。 I'm sorry,I don't know. 恐怕帮不了你，我对这的情况也不熟。 I'm afraid I can't help you. I'm new here myself. 我自己也人生地不熟。 I'm strange here myself. 请问别人吧。 Please ask someone else. 干嘛不问那边那个警察呢？ Why don't you ask the police man over there?