Focalizer
n. 聚焦设备, 聚焦装置
🗣️ 情景例句
What subject did you major in university?
你在大学主修的科目是什么？
On a crowded train, one comes in contact with many people.
在拥挤的火车里面，会和许多人接触。
Was the noise a cause of the illness, or were the complaints about noise merely a symptom?
是噪音引起了（精神）病呢，还是（精神）病的症状之一是对噪音的抱怨？