名词
中文翻译：奇变
同义词：
['substitution', 'substitutions', 'variation', 'change']
例句：
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1. The oddsubstitution of the old system with a new one has improved efficiency.
旧系统与新系统的替换提高了效率。
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2. The company made an oddsubstitution in its marketing strategy to attract more customers.
公司为了吸引更多顾客而对其营销策略进行了奇变。
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3. The scientist made an oddsubstitution in his research method to solve the problem.
科学家在其研究方法中进行了奇变以解决问题。