形容词
中文翻译：Unknown
同义词：
['economic', 'economical', 'prudent', 'frugal']
例句：
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1. The company's decision to invest in new technology was economical.
公司决定投资新技术是经济上的。
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2. She is an economical eater and always tries to save money.
她是个节俭的人，总是努力省钱。
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3. The economist predicted that the economy would be economical in the coming years.
这位经济学家预测未来几年经济将保持经济性。