Felton's serum
[医] 费尔顿氏血清(浓缩抗肺炎球菌马血清)
🧩 词语组成解析
serum
['sɪrəm]
n. <医>血清，血浆;浆液，树液;乳清;
🗣️ 情景例句
and my friends don't want to go.
我的朋友们又不想去。
We're in competition with several other companies for the contract.
我们与另外几家公司逐争取这个合同。
Today is Thursday, September 10th, Teachers' Day.
今天是9月10日，星期四，教师节。