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。