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
Living conditions in the desert around Las Vegas are very harsh.
在拉斯韦加斯的周围的居住条件非常艰苦。
There is no time like the present.
机不可失，时不再来。
Really? They're rather a strong team, aren't they?
是吗？他们可是只强队，不是吗？