名词
中文翻译：确定的变化
同义词：
['definite variation', 'decisive variation']
例句：
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1.The team's performance was a decisive variation from their previous games.
团队的表现与之前的比赛相比是一个决定性的变化。
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2.The scientist made a definitive variation in his research method.
科学家在他的研究方法上做出了一个决定性的改变。
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3. The weather forecast predicted a definitive variation in the temperature over the next few days.
天气预报预测在接下来的几天里，温度会有决定性的变化。