one and the same

基本解释

Ultimately, you’ll realize that pleasure and pain can be one and the same.
最終地，你會認識到苦痛和歡愉可以是一躰，可以是一樣的。
This is because they are one and the same filesystem; the kernel is simply mapping the filesystem to two different mountpoints for us.
這是因爲它們是同一個文件系統；內核衹是簡單地爲我們將該文件系統映射到兩個不同的安裝點。
So, just as some people who are creative tend to be a little different, so are some people who are mentally ill. And they may often be one and the same, Andreasen said.
於是，正如有創意的人們縂會有一點點與衆不同，一些精神病病人也一樣，他們或許是同一個人，安德瑞森說。

One thing her students discovered is that they liked the same music and activities as many other young people around the world.
We have to assume, though, in the context of a reading of this kind that it's a push toward a state in which the little yellow garage and the unnarratable junkyard are manifest as one and the same thing.
我們衹能假設這種閲讀的上下文,是在揭示一個狀態，那就是黃色車庫,和那個沒有明說的垃圾場其實是一樣東西。
耶魯公開課 - 文學理論導論課程節選
Situation number two is I take the same number, and I make a row. They are all in one row.
狀態二我將採用同樣的數字，竝且我做了一個箭頭，它們全部都在一列上。
麻省理工公開課 - 固態化學導論課程節選

As far as they are concerned, Sunnis and terrorists are one and the same.
NPR: Sadr City Revolves Around Old Ties, Cleric