想想我居然把你留在一个陌生的地方。

To think I left you alone in a strange place.

《柯林斯英汉双解大词典》

当发现自己偏离路线，但又并非身处完全陌生的区域时，你要回答两个问题：在这片区域，哪边是下坡方向？

When you find yourself off a trail, but not in a completely unfamiliar area of land, you have to answer two questions: Which way is downhill, in this particular area?

youdao

提防那些主动让你搭车的陌生人。

Be wary of strangers who offer you a ride.

《牛津词典》

and response to any situation that feels strange or weird or just doesn't sit right with you.

你可以用来表达你对那些让你感到陌生、怪异或者就是不对劲的情况的反应。

I'm afraid of 课堂 - SpeakingMax英语口语达人

It isn't the stranger you fall in love with.

你爱上的不是陌生人。

耶鲁公开课 - 心理学导论课程节选

Call it generosity between two strangers.

你可以称为陌生人之间的慷慨解囊。

哈佛公开课 - 幸福课课程节选