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
Your real education doesn't start until you get out into the real world.
直到你踏入现实社会，你才真正开始学习。
You have too much time on your hands. Why don't you start a hobby?
你有太多的空闲时间，何不开始一样嗜好呢？
I was on the march.
我参加了游行。