in one's +序数词 和in one's +基数词复数有什么区别。举个例子我不明白

in one's +序数词 和in one's +基数词复数有什么区别。举个例子我不明白 in one's +基数词复数表示什么? at home 和 in one~s home有什么区别? in one"s early twenties 与 in one"s late twenties 有什么区别?（one" 在迈克10岁的时候用“in one`s +基数词复数形式”翻译 in one's life和all one's life有什么区别 in one's life 和 of one's life 有什么区别 to one's surprise和in one's surprise怎么区别。 on one 'fiftieth和 in one's fifties 有什么区别 in one's life和during one's life区别 on one‘s back 和in one's back区别 in one‘s heart 和in one ’mind区别