It's about a two-mile walk.请问能改成It's about two miles'walk.吗?

前面要加冠词a a one-mile walk
After a 10-mile walk into the hills one finally reaches a piece of land and two small houses so hidden in the thick over-grown forest that only a handful of people know Dorothea is there.
向山里走大约10英里,终于看到了一小块土地,两间小房子.山里林深叶茂,多罗西亚的小房子几乎完全被遮住了,只有很少几个人知道她住在那里.
after a 10-mile walk into the hills one finally reaches a piece of land and two small houses so hidden in the thick over-grown forest that only a handful of people know Dorothea is there.
经过10英里的步行到山上一终于到达一块地和两个小房子,让隐藏在厚厚的过度增长,多萝西娅在那里.

这两种表达方式都是可以的.
1. 第一种使用连词符构成复合形容词来修饰名词,即：基数词-名词.
此时要求名词必须使用单数形式.
再如：It is a five-star hotel.
2. 第二种就是直接使用名词所有格形式做定语,此时就没有连词符了.
有时两者可以互换使用,如：a ten hours' walk = a ten-hour walk
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