形容词
中文翻译：有效的
同义词：
['effective', 'efficient', 'productive']
例句：
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1. The new software is designed to beefficient and user-friendly.
这款新软件旨在高效且用户友好。
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2. Theengineers worked efficiently tocomplete the project on time.
工程师们高效地工作，按时完成了项目。
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3. The newmachine has been designed to bemore efficient than its predecessor.
这款新机器比其前代产品更高效。