父母在管理家庭责任的同时很难保持一份工作。

It's difficult for parents to ___hold ___down ___a ___job while managing family responsibilities.

许多人难以保持一份他们认为没有成就感的工作。

Many people struggle to ___hold ___down ___a ___job they find unfulfilling.

在波动大的市场中保持一份工作需要韧性和适应能力。

To ___hold ___down ___a ___job in a volatile market requires resilience and adaptability.