The two unequal shorter sides of the curvilinear trapezoid of each building change their geometry every two floors.

每隔两层，每幢建筑曲线梯形的两条不相等的短边就会改变其几何形状。

Possible curvilinear relation (use Transformation?)

可能的曲线关系(使用转换？)

Then, linear equation is turned back into curvilinear equation.

然后，将回归后的线性方程还原成原曲线方程。

The association between education and divorce is also curvilinear.

教育和离婚直间的关系也是曲线型的。

And now what is to be regarded as the clue to curvilinear motion?

然而现在应该把什么看作是曲线运动的线索呢？