动词
中文翻译：升级
同义词：
['enhance', 'elevate', 'improve']
例句：
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1.The software has been upgraded to version 2.0.
软件已经升级到2.0版本。
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2. The company is upgrading its infrastructure to support the new project.
公司正在升级其基础设施以支持新项目。
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3. The car's engine has been upgraded to run more efficiently.
汽车的发动机已经被升级，运行得更加高效。