名词
中文翻译：外部贸易单位价值指数
同义词：
['出口贸易单位价值指数，外贸单位价值指数']
例句：
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1.The external trade unit value index is a key indicator of the country's economic health.
外部贸易单位价值指数是衡量国家经济健康状况的关键指标。
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2. The government has been working to improve the external trade unit value index.
政府一直在努力提高外部贸易单位价值指数。
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3.The external trade unit value index has been declining in recent years, which may indicate a weakening of the country's economy.
近年来外部贸易单位价值指数一直在下降，这可能表明该国经济的疲软。