名词
中文翻译：经营盈余
同义词：
['operating income', 'operating profit', 'operating balance']
例句：
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1. The company's operating surplus has increased significantly in the past year.
该公司过去一年的经营盈余显著增加。
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2. The operating surplus is a key indicator of a company's financial health.
经营盈余是衡量公司财务状况的关键指标。
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3. The operating surplus helps the company to maintain its cash reserves and invest in new projects.
经营盈余帮助公司保持现金储备并投资于新项目。