There was a complete stranger sitting at my desk.

我书桌前坐着一个从未见过的陌生人。

《牛津词典》

This one stranger responded beautifully to my small crisis, but she actually wasn't the only one.

这个陌生人漂亮地处理了我的危机，但实际上，她并不是唯一一个（这样做的）。

youdao

My mother was putting her groceries into shopping bags when a stranger came up to her and said, "Here are the things that you put back." handing her the rubbing alcohol and the soap.

我母亲正在把她的杂货装进购物袋里，一个陌生人走过来对母亲说：“这是你放回去的东西。”同时递给了母亲医用酒精和肥皂。

youdao

At an airport with a full body scanner, I can have the image of my body displayed before a stranger -- virtual nudity.

CNN: Airport screening for 'Flying while Muslim'

I've done some strange things in pursuit of art but none stranger than pressing my ear to a steel strut of the Finnieston Crane listening out for its "voice".

BBC: What does the voice of the Finnieston Crane sound like?

Me, my brother, and our cousin against the stranger.

CENTERFORSECURITYPOLICY: Next Steps in the Iran Crisis