如果他们彼此不交谈，怎么能达成协议呢？

How can they reach an agreement if they won't talk to ___one ___another?

我们从波兰就彼此认识。

We know ___one ___another from Poland.

团队成员在困难时期互相支持。

The team members support ___one ___another during difficult times.