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
How does that look, Rob?
看起来怎么样，Rob？
I was little ill at ease.
我有点不自在。
Have you had any breakfast yet?
你吃过早餐了吗？