As a foreigner on a Chinese train I usually have to undergo a form of polite interrogation before I can have a meaningful conversation with a stranger.

作为一个乘坐中国火车的外国人，在我可以与陌生人展开有意义的谈话之前，我通常都得先被客气地予以一番讯问。

youdao

With time everyone will probably get to know her, but for now she is a polite stranger.

也许过段时间，人们就会对新娘熟悉起来了，但目前她对我们大家来说，还只是一个陌生人。

youdao

Samsung knows you're too polite to hold the stranger up while you convey your vision, so it has come up with a camera feature that does the explaining for you.

ENGADGET