Caseoserum
[医] 抗酪蛋白血清
🗣️ 情景例句
Examinations are at hand.
考试在即。
Is this toothpaste on sale today?
这支牙膏今天是削价出售的吗？
Ethanol is more effective at a concentration of 50-70 percent;
乙醇的浓度为50％至70％时比较有效，