None of the Indiana University study participants understood German, and were using only visual cues and tone of voice to determine daters' interest.

没有一个印第安纳大学的被试懂德语，他们只能从语调和视觉线索中确定双方的兴趣。

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It would still require maintaining substantial armed forces with a qualitative edge, but using them only when there is an affordable and persuasive American national interest.

我们的武装力量仍需要维持质量上的优势，但只有我们出于美国利益，而且负担得起时才能使用它。

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Nowadays, various problems have existed in water consumption of cities, not only on the systematic, policy and management level, but also on the interest distribution and using water behaviors.

目前中国很多城市的用水，无论是在制度、政策和管理上，还是在利益分配上，抑或是用水行为上，都存在多方面的问题。

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To set things straight, I borrowed money from my older brother to erase my credit-card debt (I repaid him over time, without interest) and began using my cards only when I knew I could pay them in full each month.

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Furthermore, Lauren Wainwright may indeed have exactly the deeper conflict of interest that Florence only hinted at and suggested by using her tweet merely as an example.

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Not only does a fixed rate prevent a central bank from using interest rates to prevent an economy from overheating (because higher interest rates would push up the value of the currency), but it also encourages too much foreign-currency borrowing when foreign interest rates are lower than local ones.

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