If you simplify something, you make it easier to understand or you remove the things which make it complex.
例句
...a plan to simplify the complex social security system...简化复杂的社会保障体系的计划He reduced his needs to the minimum by simplifying his life.他过上了一种简单的生活,将自己的需求降到最低限度。
英英词典释义
Adjective
1. made easy or uncomplicated
2. reduced in complexity;
"a useful if somewhat simplified classification system"