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每日一词【205】spike：大幅度上升

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学个词 94:spike

今天学的词组是spike。Spike是一种大钉子，比如铁路枕木上的道钉。Spike也有突然增加的意思。比如利率突然提高 - interest rate spikes; 腐败案件突然增多 - corruption cases spiked。 那么说到腐败，美国