Roux's serum
[医] 鲁氏血清, 抗白喉血清
🧩 词语组成解析
serum
['sɪrəm]
n. <医>血清，血浆;浆液，树液;乳清;
🗣️ 情景例句
I'll have chocolate.
我要巧克力的。
What''s the fare to New York, Economy Class?
去纽约的经济舱机票多少钱？
I envy you very much.
我非常羡慕你！