Doyen's serum
[医] 杜瓦扬氏血清
🧩 词语组成解析
serum
['sɪrəm]
n. <医>血清，血浆;浆液，树液;乳清;
🗣️ 情景例句
What's it about?
是关于什么的？
How much is a round-trip ticket to Beijing?
一张到北京的来回票要多少钱？
Oxygen is widely used in ship repairs for cutting and joining metal plates or pipes.
在船舶修理过程中，常常使用氧气切割和焊接金属板或金属管。