precipice

这个国家正处在经济崩溃的边缘。

The country is on the ___precipice of economic collapse.

站在悬崖边缘往下看让人头晕目眩。

Looking down from the edge of the ___precipice makes me dizzy.

经过多年的犹豫，她站在了重大职业转变的悬崖边。

After years of deliberation, she stood on the ___precipice of a major career change.