Normal concentration
[化] 规定浓度; 当量浓度
🧩 词语组成解析
🗣️ 情景例句
He lost his money due to his own carelessness.
由于大意，他丢了钱。
Let the hands get busy, not the mouth.
手要勤劳，嘴莫多说。
There is a picture on the wall.
墙上有一张画。