Macroconcentration
常量浓度
🗣️ 情景例句
I'm awfully sorry.
非常抱歉。
If you don't have the quality inquired for, please offer us its nearest equivalent.
如果贵方没有所要求质量的产品，请提供与之最接近的产品。
And now medical care helps to keep people alive longer.
现在的医疗保健使得人们活得更长。