It turns out that her aunt and my cousin are one and the same.

原来她姑妈就是我表姐。

《牛津词典》

There you were, gazing at one and the same moment into the drawing-room, dining room, the kitchen, and two bedrooms.

你就在那里，同时凝视着客厅、餐厅、厨房和两间卧室。

youdao

These are really one and the same.

他们是真实一体的并且是相同的。

youdao

One thing her students discovered is that they liked the same music and activities as many other young people around the world.

VOA: special.2009.11.12

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.

我们只能假设这种阅读的上下文,是在揭示一个状态，那就是黄色车库,和那个没有明说的垃圾场其实是一样东西。

耶鲁公开课 - 文学理论导论课程节选

Situation number two is I take the same number, and I make a row. They are all in one row.

状态二我将采用同样的数字，并且我做了一个箭头，它们全部都在一列上。

麻省理工公开课 - 固态化学导论课程节选

At one and the same time it's devoid of reality and insufferably full of itself.

WSJ: Muddle-'Earth' | After Earth | The East | Deceptive Practice: The Mysteries and Mentors of Ricky Jay | By Joe Morgenstern

As far as they are concerned, Sunnis and terrorists are one and the same.

NPR: Sadr City Revolves Around Old Ties, Cleric

In fact, they are one and the same organization with numerous fronts and offshoots.

CENTERFORSECURITYPOLICY: Seven years since 9/11