动词
中文翻译：升级
同义词：
['improvement', 'enhancement']
例句：
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1.The company is upgrading its software to improve its efficiency.
公司正在升级其软件以提高效率。
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2. The new model car has been upgraded with more advanced features.
新款汽车已经升级，配备了更多先进的功能。
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3.The government is investing in upgrading infrastructure to support the growing population.
政府正在投资基础设施升级，以支持不断增长的人口。