Fluorosensor
氟传感器
🗣️ 情景例句
Sorry, I'm afraid I'm busy tonight.
很抱歉，恐怕我今晚没空。
He who makes no mistakes, makes nothing.
不犯错误，成不了事。
Education is one of the key words of our time.
教育是我们这个时代的关键词之一。