Yersin's serum
[医] 鼠疫血清
🧩 词语组成解析
serum
['sɪrəm]
n. <医>血清，血浆;浆液，树液;乳清;
🗣️ 情景例句
I'm relieved to hear that.
你的话使我松了一口气。
Long looked for comes at last.
久久寻找，终会找到。
Did he say what it was about?
他讲了什么事吗？