入门字
dilemma (n.) 两难
di/ lemma
two/ proposition
进阶字
1. dichotomy (n.) 二分法，泾渭分明的分隔
dicho/ tom/ y
two/ cut/ 名词字尾
In children's literature, there is a simple dichotomy between good and evil: a character is either wholly good or wholly bad.
儿童文学中往往以简单的二分法区隔善恶：人物不是十恶不赦就是十全十美。