Recently, my Indian grandmother visited the United States for a prolonged stay.

岁的她已经来过几次了，母亲说这可能是她最后一次来美国旅行了。

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Among other unanswered questions: Might a cash-starved world mean a prolonged period when interest rates for corporate borrowers stay well above historic levels?

其它悬而未决的问题有：在企业借款利率仍大大高于历史水平之际，一个现金紧张的世界是否意味着紧张的期限将会延长？

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Because energy is such a crucial part of the economy, if prices stay high for a prolonged period, they will both raise the inflation rate and lower the rate of economic growth.

因为能源是整个经济的重要因素，如果油价长期高企不下，通货膨胀率就可能继续上涨，而经济增长率却在下降。可能出现的极端情况就是：尽管经济不景气，物价却持续上涨。

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The weather, so balmy in June, reverted to rainy type in July, confounding predictions of a prolonged scorcher, leaving the meteorologists red-faced and the skin of stay-at-home Britons pallid.

ECONOMIST: Britain��s long, hot-and-cold summer of uncertainty