Roux's serum
[医] 鲁氏血清, 抗白喉血清
🧩 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.
你好。
What shall I send him for his the New Year?
我要送他什么东西作为新年礼物？
The turtle at last gives up by pulling his feet under his shell and the game is over.
海龟终于屈服了，将4条腿缩进壳内。