Normal concentration
[化] 规定浓度; 当量浓度
🧩 词语组成解析
🗣️ 情景例句
They had a special on frozen fish down at the supermarket.
超级市场 冷冻鱼特价。
It's least valuable.
这最没有价值。
I doubt if he'll be asked to speak again next year.
我怀疑明年是否还会邀请他作报告。