(每日一词）delineate

Delineate /dɪˈlɪn.i.eɪt/ v. 描述；勾勒

meaning: to describe or make the edge of something 描述；勾勒

1) 前缀：de-加强语气
2) 词根：line 线条

3) 后缀：-ate 动词后缀

e.g. The main character are clearly delineated in the first chapter. 主要人物在第一章里得到了清晰的描述。