Flexner's serum
[医] 弗累克斯讷氏血清, 抗脑膜炎球菌血清
🧩 词语组成解析
serum
['sɪrəm]
n. <医>血清，血浆;浆液，树液;乳清;
🗣️ 情景例句
May I please speak to Ling Ling?
我可以和玲玲讲话吗？
Did you sell it to him yourself?
你自己亲自卖给他吗？
Yes.
是。