名词
中文翻译：升级者
同义词：
['improviser', 'enhancer', 'ameliorator']
例句：
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1. The software upgrader has made significant improvements to the system.
软件升级者对系统进行了重大改进。
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2. The engineer is an upgrader who constantly seeks ways to improve efficiency.
这位工程师是一名不断寻求提高效率的升级者。
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3. The company's new product is designed to be a better upgrader than its predecessor.
该公司的新产品旨在成为比其前代产品更好的升级者。