As five-stars is the highest rating in most hotel systems, there is no worldwide standard for a "seven-star hotel", neither is it an official classification of quality.
事实上，现在世界上并没有所谓的七星级酒店标准，这也不是任何官方质量的评定，大部分酒店系统的最高打分只到五星。
Rating agencies massively, suddenly and sharply downgraded products which until then were deemed of the highest quality.
评级公司突然大规模调低了我们一度认为最优质产品的信用等级。
Rating agencies massively, suddenly and sharply downgraded products which until then were deemed of the highest quality.
评级公司突然大规模调低了我们一度认为最优质产品的信用等级。
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