Serovar
血清变型
🗣️ 情景例句
No. Isn't it wonderful?
不， 这不是很美妙吗？
I am very much thrilled to see this luxurious office.
看到这样一个高层次的分支机构我感到很激动。
Oh good! But where are the paper bags?
太好了。不过纸袋在哪儿？