名词
中文翻译：利润率
同义词：
['profit margin', 'return on investment (ROI)', 'profitability']
例句：
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1. The company's profit ratio has improved significantly since the new management took over.
自从新管理层上任以来，公司的利润率已经显著提高。
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2. The financial report revealed that the company's profit ratio was below industry average.
财务报告显示，该公司的利润率低于行业平均水平。
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3. To increase profitability, the company is considering investing in new technologies.
为了提高盈利能力，公司正在考虑投资新技术。