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
If we hire you, how long will you stay with us?
你打算给我们工作多久？
Please don't blame yourself.
请不要责怪你自己。
she has to help with the washing.
她得帮忙洗衣服。