Serum ferment
[医] 血清酶
🧩 词语组成解析
serum
['sɪrəm]
n. <医>血清，血浆;浆液，树液;乳清;
🗣️ 情景例句
But you just got here. Can't you stay a little longer?
可你刚刚到，再多呆一会儿，好吗？
Do you often do composition after school?
你常常在放学后做作文吗？
I'm fine, thanks. And you?
我很好，谢谢。你呢？