该国当时正处于经济崩溃的边缘。

The country was ___on ___the ___brink ___of economic collapse.

由于管理不善，这家公司发现自己濒临破产。

The company found itself ___on ___the ___brink ___of financial ruin due to mismanagement.

若不立即采取行动，我们将面临一场环境灾难。

Without immediate action, we are ___on ___the ___brink ___of an environmental catastrophe.