名词
中文翻译：Unknown
同义词：
['increment', 'addition', 'increase']
例句：
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3.例句：1. The cost of the new product is $500.
新产品的成本是500美元。
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2. The teacher added a new lesson to the class schedule.
老师在课表上增加了一个新课程。
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3. The company's revenue has increased by 20% since last year.
公司去年的收入比前年增加了20%。