如果你要说某地离这里有2英里远
那就是the
place
is
two
miles
away
from
here.
the
place
is
two
miles'
walk
from
here.
而如果你要说某样东西有2英里~注意是这样东西本身有2英里~那就是sth
is
two
mile
这时候要用two-mile就要说a
two-mile
...
但是实际上这两个词是一样的，你可以说a
two-mile-long
road也可以说a
two
miles'
road
two-mile是个复合形容词，就好像*-year-old一样~是前置定语(一个两岁的小女孩：a
two-year-old
girl)
温馨提示：答案为网友推荐，仅供参考