Kitasato's serum
[医] 北里氏血清(抗霍乱血清)
🧩 词语组成解析
serum
['sɪrəm]
n. <医>血清，血浆;浆液，树液;乳清;
🗣️ 情景例句
When did the Roman Empire come into being?
罗马帝国是什么时候形成的？
Do you often do work during the holidays?
你常常在假日期间做工作吗？
Annie and her brother were sent to a children's home. There the boy died.
安妮和她的弟弟被送往一家孤儿院。弟弟在孤儿院死了。