Behring's serum
[医] 贝林格氏血清(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
Hi, there!
你好！
I don't allow my children to play with toy guns.
我不让自己的孩子玩玩具枪。
I felt very nervous when I went into his office.
我走进他的办公室，感到非常紧张。