Serotypes
(serotype 的复数) [医] 血清型
🗣️ 情景例句
This is a good deal: buy 1, get 1 free.
这可是个好买卖：买一送一。
He has a dog.
他有一条狗。
In a few minutes he returned with my bag and gave it back to me.
一会儿工夫他拿着我的提包回来了，把它还给了我。