如果改变评级的话，那是意味着美国的偿还债务的风险增加了。
And if you change the rating, it means that the risk level has gone up.
内部信用评级是商业银行风险管理体系的核心。
Internal credit rating is the core of the risk management system of commercial banking.
对风险控制技术特别是信用评级制度作了深入阐述。
Control technology, particularly credit risk rating system has been thoroughly explained.
信用评级是信用风险管理的基石。
Credit rating is the cornerstone of the credit risk management.
信用风险；商业银行；信用评级；度量模型；信用风险管理。
Credit risk; Commercial bank; Credit rating; Measure model; Credit risk management.
降低风险的评级，要像财产或股票的风险资产。
Lower risks should lead to the re-rating of risk assets like property or stock.
信用评级是风险度量的基础，没有信用评级就没有真正意义上的风险管理。
Credit rating is the basis of risk measurement, no credit rating no real risk management.
非金融机构的企业风险管理信用评级分析：你准备好了么？
Credit Rating Analysis of Enterprise Risk Management at Nonfinancial Companies: Are You Ready?
非金融机构的企业风险管理信用评级分析：你准备好了么？
Credit Rating Analysis of Enterprise Risk Management at Nonfinancial Companies: Are You Ready?
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