Water resources shortage has become an international economic problem.
水资源的匮乏已成为全球性的经济问题。
Drawing interpretation and transformation are a difficult problem in international economic and technical exchange.
国际经济技术交流中，图纸翻译转化是一大难题。
Drawing interpretation and transformation are a difficult problem in international economic and technical exchange.
国际经济技术交流中，图纸翻译转化是一大难题。
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