这两个国家正处于战争的边缘。

The two countries are ___on ___the ___brink ___of war.

到21世纪末，地球濒临毁灭。

By the end of the 21st century, Earth was ___on ___the ___brink ___of destruction.

由于财务损失，这家公司濒临破产。

The company is ___on ___the ___brink ___of bankruptcy due to financial losses.