动词
中文翻译：Unknown
同义词：
['diminish', 'diminish', 'lessen', 'reduce']
例句：
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1. The population of the city hasdecreased by 20% in thepast five years.
过去五年里，该市的人口减少了20%。
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2. The temperature hasdecreased significantly since yesterday.
自昨天以来，温度显著下降。
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3. The company's profitshave decreased due to the economic downturn.
由于经济衰退，该公司的利润已经减少。