only one of、one out of与only one out of的区别

only one of、one out of与only one out of 首先这些都不是固定搭配.one of ..之一,单数用法.only 唯一的,仅有的,强调作用. out of (由于；自…离开；用…（材料）；缺乏)要根据动词决定意义.