Immune serum
[化] 免疫血清
🧩 词语组成解析
serum
['sɪrəm]
n. <医>血清，血浆;浆液，树液;乳清;
🗣️ 情景例句
Very well.
很好。
Competition for this kind of goods is tough.
这种商品的竞争非常激烈。
She spent a lot of money on books.
她花了很多钱来买书。