Three decades ago, the club of triple A-rated American corporate borrowers was a busy place. About 60 big companies, ranging from Pfizer to General Motors, were deemed so “safe” that they held this coveted tag from the credit rating agencies.
30年前，隶属“AAA评级俱乐部”的美国企业不胜枚举。从辉瑞(Pfizer)到通用汽车(General Motors)等约60家大公司，均被认定为十分“安全”，从而获得了信用评级机构的顶级信用评级。
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