Calcium serum
[医] 血清钙
🧩 词语组成解析
serum
['sɪrəm]
n. <医>血清，血浆;浆液，树液;乳清;
🗣️ 情景例句
Well... they want me to,
这……他们希望这样。
I have great difficulty in understanding him.
我觉得很难理解他。
It's nothing serious.You'd better have a good rest.
（病情）不太严重。你最好好好休息一下。