Active serum
[医] 活性血清(含补体的血清)
🧩 词语组成解析
active
['æktiv]
adj. 积极的，活跃的，有生气的;迅速的，敏捷的;有效的，起作用的;
n. [语法]主动语态;积极分子，活跃的人;
serum
['sɪrəm]
n. <医>血清，血浆;浆液，树液;乳清;
🗣️ 情景例句
Couldn't you sell us one carton for-?
不能以每盒--卖给我们吗？
Excuse me, but could you give me some change?
劳驾，你能换些零钱给我吗？
but the took a long time to send them Meanwhile,
但过了好长时间不见他把数字寄来，