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
He's running for the school board.
他正在竞选联合校董会董事。
Loftiest trees most dread the thunder.
树大招风。
He does exercises every day in the morning.
他每天早上锻练身体。