Serological
a. 血清学的
🗣️ 情景例句
I frankly don't know what to do about it.
我真不知道该怎么解决。
Do you have any questions at this point?
就这一点你们还有什么问题吗？
I nearly forgot! It's Grandma's birthday next Thursday
我差点儿忘啦！下星期四是奶奶的生日。