Definer
n. 定义者（define的名词形式）
🗣️ 情景例句
My wife and I are celebrating our fifth anniversary.
我太太和我要庆祝一下我们的结婚五周年。
The whole thing was held up about half an hour.
整个事情耽搁了约半小时。
The inspector began to look for fingerprints, while the constable checked that the front door locks had not been forced,
巡官开始搜寻指纹，警察经检查发现大门锁头并无撬过的迹象。