the other three或者是three the other 或者是the other one或者another three

两个东西,一个,另一个用（the other one ）
这两个之外的用（another
another
a.
1.又一,再一
He drank another glass of beer.
他又喝了一杯啤酒.
2.另一;另外的
That's another matter.
那是另外一回事.
pron.
1.又一个,再一个
The little boy finished his cake and asked for another.
小男孩吃完自己的饼后,要求再吃一块.
2.另一个
I don't like this one,please show me another.
我不喜欢这个,请给我另一个.
other
a.
1.(两者中)另一个的;其余的
Her first-born is a doctor.Her other children are all in the army.
她的长子是医生,其余几个孩子都在部队服役.
2.别的,其他的;更多的
There are other ways to do this exercise.
做这个练习还可用别的方法.
3.不同的
pron.
1.(两个中的)另一个人(或物);另一方[the S]
It is hard to tell the twin brothers one from the other.
这对孪生兄弟很难辨认.
2.其余的人(或物)
Some boys are reading; others are listening to the radio.
有些孩子在阅读,有些则在听收音机.
我觉得最大区别就是 other把你要描述的事物分为了两个部分 one和the other one
another就是 one,another one,another one,another one,another one.