one day,another day,some day,any day的区别,用法和意思

one day,（从前）有一天
One day ,a serpent found a magic ring.
从前有一天,一个蛇妖发现了一只魔戒.
another day,择日、改天（今天或现在不合适）
I'm sorry,it' too late to my business,let's see another day.
对不起,我快赶不上上班了,我们下次再聊吧.
some day,（以后）某一天
Some day,you'll find your princess.
总有一天你会找到你的公主的.
言外之意是,我们在一起不合适,还是分手吧.
any day,随便那天
My castle is your castle,you can come any day.
在我家就像在自家一样,别拘束啊.
这句意译感觉要好些.

one day

adv. 有一天,总有一天
another day

改天
some day
adv. 来日

any day
随便哪一天