名词
中文翻译：可证明的花费
同义词：
['justified expenditure', 'reasonable expenditure']
例句：
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1. The company's justifiable expenditure on marketing was $500,000.
该公司在市场营销上的合理开支为50万美元。
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2. The government's justifiable expenditure on education is a significant factor in its economic development.
政府在教育上的合理开支是其经济发展的一个重要因素。
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3. The company's justifiable expenditure on research and development was $10 million.
公司在研究和开发上的合理开支为1000万美元。