老师通过不同的颜色标记帮助学生理解这两个概念的区分。

The teacher used different colors to help students understand the ___differentiation between these two concepts.

在微积分课上，我们学习了如何对多项式函数进行微分。

In calculus class, we learned how to perform ___differentiation on polynomial functions.

细胞分化使胚胎发育成不同的组织和器官。

Cell ___differentiation allows the embryo to develop into various tissues and organs.