Definer
n. 定义者（define的名词形式）
🗣️ 情景例句
I've decided to stay at home and be a full-time mother.
我决定留在家里做一个专职母亲。
Youth is a blunder; manhood a struggle, old age a regret.
青年冒失莽撞；成年发奋图强；老年遗憾懊丧。
I turned the corner and looked in astonishment.
我转了个弯，十分惊奇地看着。