互相的英文两种：

each other

one another

We should help each other /one another.

他们站在那，互相怒视着对方。

They stood there, glaring at each other.

各商行互相竞争以招揽顾客。

Businesses vied with each other to attract customers.

他们在议会中互相吹捧。

They clawed each other in Parliament.

他们举起帽子互相致意。

They saluted each other by raising their hats.