贫穷常常导致债务和绝望的恶性循环。
Poverty often leads to ___a ___vicious ___circle of debt and despair.
缺乏教育造成了贫困的恶性循环。
The lack of education creates ___a ___vicious ___circle of poverty.
当压力导致失眠,而失眠又增加压力时,这就是一个恶性循环。
When stress causes insomnia, which in turn increases stress, it's ___a ___vicious ___circle.