形容词
中文翻译：有效的
同义词：
['effective', 'competent', 'proficient']
例句：
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1.The new software is designed to be efficient in its use of resources.
这款新软件旨在高效利用资源。
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2.The engineers are highly efficient at their jobs.
工程师们工作效率很高。
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3. The new machine is more efficient than the old one.
这台新机器比旧的更高效。