They smiled uncertainly at one another.

他们犹豫地相视而笑。

《牛津词典》

They smiled at one another, somewhat falsely.

他们相互微笑，有点假惺惺地。

《柯林斯英汉双解大词典》

We were like little children. We made snow balls, and threw them at one another.

我们像小孩子一样。我们做雪球并互相扔。

youdao

And we just all looked at one another and said, 'We're going to rebuild together;

VOA: standard.2010.02.08

Look at one another.

看着对方。

哈佛公开课 - 幸福课课程节选

But how is it then to meet someone at a different religion and different political persuasion, and yet still be able to be kind to one another.

那你们遇见来自不同宗教,不同政治倾向性的人是什么感受，而且你们仍然可以彼此成为朋友。

普林斯顿公开课 - 人性课程节选

People are "throwing sheep" at one another and they are seeing "who is hot".

BBC: Firms 'miss' social site success

Some folks are flinging marshmallows and ping-pong balls at one another to simulate hail.

WSJ: What's Plaguing Passover Feasts? Some Say Rituals Need Spicing Up

They smiled at one another and waved their hands in the air, showing the victory sign.

WSJ: Crowds, Calm and Then Gunshots