名词
中文翻译：汇率
同义词：
['rate of exchange', 'currency exchange rate', 'foreign exchange rate']
例句：
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1. The exchange ratebetween the two currencies has been fluctuating recently.
最近两种货币之间的汇率一直在波动。
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2. The exchange rate is crucial for international trade.
汇率对于国际贸易至关重要。
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3. The company's exchange rate policy affects its competitiveness in the market.
公司的汇率政策影响其在市场中的竞争力。