Do you know roughly how far it is?

　　问路程远近

　　还可以这样说：

　　Can you walk there?Is it within walking distance?

　　走路可以到么？

　　可以这样回答：

　　It is still quite a ways.Probably another hour or so.Are you sure you want to walk?

　　离这里还有一段距离，大约一小时左右。你确定要用走的么？