She was trapped in a downward spiral of personal unhappiness.

她陷入了个人不幸的旋涡难以自拔。

《牛津词典》

This can lead us on a downward spiral with more and more plants and animals becoming endangered as well.

这可能导致我们进入一个恶性循环，即越来越多的植物和动物也濒临灭绝。

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The result is a downward spiral.

这将造成一个下行螺旋的结果。

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World markets continue their downward spiral as investors try to gauge the direction of the global economy.

VOA: standard.2010.05.25

And very often what that does-- a positive emotion can take us out of this downward spiral and create an upward spiral.

很经常的是-,积极情绪把我们带出下行螺旋,形成一个上行螺旋。

哈佛公开课 - 幸福课课程节选

It's the positive emotion that can take us out from this downward spiral to this upward spiral.

积极情绪,能把我们带离这个下行螺旋进入这个上行螺旋。

哈佛公开课 - 幸福课课程节选

The incentives will help prevent the downward spiral that can occur following mass layoff events.

WHITEHOUSE: The White House

The sense in Pakistan that the country has entered a downward spiral is palpable.

ECONOMIST: In the world��s most dangerous place

This is the easiest method of all in a downward spiral toward undermining yourself.

FORBES: 8 Ways To Undermine Yourself As A Leader