动词短语
中文翻译：Unknown
同义词：
['repair', 'adjust', 'fine-tune', 'upgrade', 'refine', 'enhance']
例句：
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1. The engineer tuned up the engine to make it run smoother.
工程师调整了引擎使其运行更顺畅。
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2. The software was fine-tuned for better performance.
软件经过精细调整以提高性能。
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3. The team is upgrading their software system to improve efficiency.
团队正在升级他们的软件系统以提高效率。