笔者上学期期末在润色一老师的英文论文时，发现这位作者将“良性循环”翻成“good circle”，将“恶性循环”译成“bad circle”，这些译法是不确切的。

     其实，“良性循环”与“恶性循环”应分别译成“virtuous circle”和“vicious circle”。下面几则例子是“virtuous circle”和“vicious circle”在各种实际场合的应用。

★Growth and specialization in an enlarged Europe: is a virtuous circle possible?

★A Virtuous Cycle in the Amazon: Reducing Mercury Exposure from Fish Consumption Requires Sustainable Agriculture

★We show how, with the right mix of policies, these same feedbacks can become virtuous cycles that lead to higher employee, customer satisfaction and additional resources to invest in still greater service quality improvement.

★... because as we get economies of scale, and demand for solar and wind and other renewable energies grows, obviously that can help drive down the overall price, make it that much for efficient, and we start getting a virtuous cycle that is good for the economy and creates jobs here in America.

★Based on the hypothesis that a vicious cycle of dental fear exists, whereby the consequences of fear tend to maintain that fear, the relationship between dental fear, self-reported oral health status and the use of dental services was explored.

★Moreover, results show that a bail-in of 8 % of total bank balance sheet can be really effective in breaking the vicious circle and preventing contagion between banks and public finances.

★The vicious cycle of lettuce corky root disease: effects of farming system, nitrogen fertilizer and herbicide

★As Americans, we believe there’s nothing wrong with making a profit.  But there is something wrong with making that profit by trapping hard-working men and women in a vicious cycle of debt. 

★If you’re making that profit by trapping hardworking Americans into a vicious cycle of debt, you’ve got to find a new business model.