战后，他们努力与邻国建立联系。

After the war they tried to build ___bridges with neighbouring countries.

这很难防止，但我们必须尽力在国家之间搭建桥梁。

It is difficult to prevent this but we must do our best to build ___bridges between countries.

文化交流是促进相互理解的桥梁。

Cultural exchanges serve as a ___bridge to foster mutual understanding.