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
Take care, and have a nice flight.
请保重！祝你一路顺风！
That's not true.
那不是真的。
It's a book.
一本书。