/ˈveəriəbl ||; ˈvɛrɪəbḷ/noun [C] a situation, number or quantity that can vary or be varied （形势、数字、数量等）可变因素: With so many variables to consider, it is difficult to calculate the cost. 由于可变因素如此之多，成本很难计算出来。The temperature was kept constant throughout the experiment while pressure was a variable. 在整个试验中温度保持不变，而压力是个可变因素。