Latta's serum
[医] 拉塔氏血清(一种无机盐溶液)
🧩 词语组成解析
serum
['sɪrəm]
n. <医>血清，血浆;浆液，树液;乳清;
🗣️ 情景例句
because she's had to go to Chicago on a business trip and can't leave till tonight.
因为她得到芝加哥出差，而且要到今晚才能脱身。
Wendy, I'd like you to meet my brother Sam.
温迪，我来向你介绍一下我的兄弟萨姆。
Competition between ourselves, person against person, community against community,
然而人类之间的竞争，人与人，团体与团体，