名词
中文翻译：主要来源的收入
同义词：
['main source of revenue']
例句：
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1.The company's main source of revenue comes from its software sales.
该公司的主要收入来源是软件销售。
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2. The government relies on tourism as a main source of foreign exchange.
政府依赖旅游业作为主要的外汇来源。
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3.The company's main source of revenue is expected to increase due to the expansion of its market share.
由于市场份额的扩大，公司的主要收入来源预计将增加。