Behring's serum
[医] 贝林格氏血清(白喉血清)
🧩 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've been working too hard. I'm beat.
我工作的太多，我快垮了。
I'm going shopping because I need to buy some clothes.
我要去购物，因为我需要买一些衣服。
She never thought of it again,
此后她就再没去想那只瓶子。