名词
中文翻译：变量
同义词：
['variability', 'variableness']
例句：
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1.The temperature varies throughout the day.
温度在整个一天内变化。
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2.The amount of sunlight that reaches the earth's surface is a variable factor.
到达地球表面的阳光量是一个可变因素。
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3.Variable factors can have a significant impact on the outcome of an experiment.
可变因素可以对实验的结果产生重大影响。