词典释义：
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Well, we don't understand why the ratings agencies haven't downgraded subprime bonds since the underlying loans are clearly deteriorating.
我们不明白为什么评级机构还没有下调次贷债券的评级，因为债券对应的房贷，断供明显在恶化。
《The Big Short》《大空头》
双语例句
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She's been downgraded from principal to vice-principal.
她已从校长降职为副校长。
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The boy's condition has been downgraded from critical to serious.
那个男孩的病情得到了缓解，从危急降为重症。
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There was no criticism of her work until after she was downgraded.
直到她被降职之后，才有人开始对她的工作说三道四。
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Nor was Italy’s public debt downgraded.
意大利的公债并未降级。
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Ukraine's debt was also downgraded, again.
乌克兰的债务同样再次被下调。
反义词