这块蛋糕由多层奶油和海绵蛋糕交替堆叠而成。

This cake has ___layered layers of cream and sponge alternating.

这个国家的教育体系高度分层，不同阶层的孩子进入不同的学校。

The country's education system is highly ___stratified, with children from different social groups attending separate schools.