I'm sorry, but I'm quite a stranger around here.
对不起，我对这里也很陌生。
I'm sorry,I'm not sure. You can ask someone else.
很抱歉，我也拿不准。你可以问问别人。
I'm sorry,this is my first time here,too.
对不起，我也是初来此地。
I'm a stranger here myself, and I do not know much about this place.
我也是外地人，对这里也不熟悉。
I suggest you ask the cop over there.
我建议你去问那边的警察。
