名词
中文翻译：年度减少
同义词：
['decrease', 'reduction']
例句：
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1. The company's annual revenue has decreased by 20% since last year.
公司去年的年收入比前一年减少了20%。
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2. The population has been decreasing steadily over the past decade.
过去十年里，人口一直在稳步减少。
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3. The government is implementing a new policy to reduce emissions in the city.
政府正在实施一项新的政策，以减少该市的排放。