由于债务偿还，富国和穷国之间的差距持续扩大。

Because of debt repayments, the ___divide between rich and poor countries is continuing to grow.

诚然有很多例外，但这种体系可被视为一种社会鸿沟。

Certainly, there are a lot of exceptions but this system can be considered as a kind of social ___divide.

当今我们面临的一大挑战是数字鸿沟。

One of the great challenges we face today is the digital ___divide.