名词
中文翻译：减少
同义词：
['diminution', 'decrease', 'reduction', 'diminishment']
例句：
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1. The costof the new product has been reduced by 20%.
新产品的成本已经降低了20%。
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2. The company's profits have decreased due to the economic downturn.
由于经济衰退，公司的盈利已经下降。
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3.The temperature has been reduced by 10°C in this region.
该地区的温度已经降低了10摄氏度。