to be a function of sth
(dependent on)取决于某事物;随某事物的变化而变化
Intelligence is partly a function of the speed with which the brain processes information.智力在一定程度上取决于大脑处理信息的速度。
Investment is a function of the interest rate.投资随着利率的变化而变化。
The impact of toxins in the environment is a function of their concentration.环境中毒素的影响随着浓度的高低而变化。