在他去世后，这个家庭陷入了不断恶化的困境。

After his death, the family went into ___a ___downward ___spiral.

失业通常是陷入恶性循环的第一步。

Unemployment is often the first step of ___a ___downward ___spiral.

危机之后，该国的经济陷入了难以控制的恶化局面。

The country's economy entered ___a ___downward ___spiral after the crisis.