Their arguments always form a vicious circle.

他们的争吵总是形成一个恶性循环。

The country's economy is caught in a vicious circle.

这个国家的经济陷入了恶性循环。

Poverty and lack of education form a vicious circle.

贫困和教育缺乏形成了一个怪圈。

The economic downturn and rising unemployment create a vicious circle.

经济衰退和失业率上升形成了一个怪圈。

They are trapped in a vicious circle and cannot escape poverty.

他们陷入了恶性循环，无法摆脱贫困。

There is a vicious circle between poverty and lack of education.

贫穷和教育不足之间存在一个恶性循环。

He is caught in a vicious circle where the more anxious he gets, the less he sleeps.

他陷入了一个怪圈，越是焦虑，越是失眠。

Unemployment leads to depression, and depression leads to unemployment; it's a vicious circle.

失业导致抑郁，抑郁又导致失业，这就是一个恶性循环。

A vicious circle , a good circle

恶性循环，良性循环

If this is the case, then, is a vicious circle.

如果这样的话，那么，就是一个恶性循环。