过去分词
中文翻译：减少的
同义词：
['diminish', 'diminish', 'lessen例句：1. The amount of oil in the tank was reduced by half.（油箱里的油量减少了一半。）']
例句：
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1. The amount of oil in the tank was reduced by half.
油箱里的油量减少了一半。
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2. The company's profits have been reduced due to the economic downturn.
由于经济衰退，公司的盈利已经减少。
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3. The population has been reduced by a third due to natural disasters.
由于自然灾害，人口已经减少了三分之一。