Normal concentration
[化] 规定浓度; 当量浓度
🧩 词语组成解析
🗣️ 情景例句
But, my dear niece, please do consider my words very carefully before you decide.
但是我的孩子，在你做出决定之前请一定要认真考虑我的话。
It is good to learn at another man's cost.
前车之覆，后车之鉴。
Pollution is the price we pay for an overpopulated, over industrialized planet.
污染就是我们为这个人口过密，过度工业化的星球所付出的代价。