The identity of the eBay auction winner is known only as ridderstrade.

但目前这位买主的身份不祥，只知道他的化名叫ridderstrade。

youdao

For 26 years, a man known only as Secret Santa has roamed the streets every December quietly giving people money.

二十六年来，一位神秘的圣诞老人在每年的12月默默地送钱给行人。

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In a heartbreaking scene, one of the giraffes then approached the man, known only as Mario, and gave him a tender kiss goodbye.

在一幕感人的画面中，一只长颈鹿走进这位名叫马里奥的工人，然后送上了温柔的告别之吻。

youdao

Until now,the Paris Institute of Political Studies, commonly known as Sciences Po, is the only grande ecole to have aggressively sought out a more diverse student body.

VOA: standard.2010.02.02

So I had only known people of color. I only knew black people or Nigros as we called ourselves then or we are called.

所以，我所认识的人,就只有黑人而已,那时我们自称“黑鬼“,大家也都这么叫我们。

普林斯顿公开课 - 人性课程节选

And so, you make not only water vapor, NOX but you make some nitrous oxides, NOX, or nox as it is known, and this is the precursor to smog.

这样不仅仅得到的水蒸气，但是你会得到一些氮氧化物，或者如大家所知到的nox，这是烟雾的前驱体。

麻省理工公开课 - 固态化学导论课程节选

The officer, known only as V53, shot Mr Duggan in the chest and arm.

BBC: London

The girl, known only as Anusha, was found to have burns over 60% of her body.

BBC: Pakistan acid attack parents 'feared dishonour'

In December 2004 a woman known only as Mrs Z won a landmark case to travel to Dignitas.

BBC: 'My brother chose to end his suffering'