名词短语
中文翻译：更新维护
同义词：
['renewal', 'upgrade', 'enhancement']
例句：
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1.The company is updating its software to improve efficiency.
该公司正在更新其软件以提高效率。
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2.The new system requires regular maintenance to ensure smooth operation.
新系统需要定期维护以确保顺畅运行。
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3. The team is working on a plan for upgrading the infrastructure.
团队正在制定升级基础设施的计划。