The vicious circle is thus transformed into a virtuous circle.

这样，恶性循环就变成了良性循环。

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She will make him a virtuous wife.

她将成为他(的)贤惠的妻子。

《新英汉大辞典》

And how do we know who a virtuous person is?

我们如何知道一个人是不是有道德的人？

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He would gladly have sacrificed them in order to keep the much more virtuous and pure Lycidas -a gruesome proposal, but it's a gruesome proposal that suggests a primitive desire for a quid pro quo.

他很乐意牺牲了他们,来维持更为纯洁纯粹的,这是一首令人毛骨悚然的提议,暗示着一种最原始的复仇的欲望。

耶鲁公开课 - 弥尔顿课程节选

As the head of the true church, Peter's voicing here his disgust that the virtuous Edward King, soon to become a minister, had been lost at sea.

作为真我教会的首领，彼得声明了他对一度贞洁的爱德华金，即将成为一名牧师，失去自我的唾弃。

耶鲁公开课 - 弥尔顿课程节选

Now you go to a Mexican restaurant and if you want to be virtuous you have the salad.

人们走进一家墨西哥餐馆,想吃的健康低热量些,于是选择了沙拉

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

But such a virtuous circle still remains a distant dream.

ECONOMIST: Too soon to celebrate | The

Will Israel be convinced, and continue making concessions to set off a virtuous circle of tahde'a instead?

ECONOMIST: The Palestinians

For now, I am optimistic that a virtuous cycle of expansion has a chance to work for the intermediate term.

FORBES: When Bad News Is Good News