As we walk through these examples, notice that ROI is an equation with two variables.

当我们讨论这三个例子的时候，请注意roi是一个拥有两个可变因素的等式。

youdao

As we walk through these examples, notice that ROI is an equation with two variables.

当我们讨论这三个例子的时候，请注意roi是一个拥有两个可变因素的等式。

youdao