Epsa
[医][=embryo placental specific antigen]胚胎胎盘特异性抗原
🗣️ 情景例句
Why does it have to be one or the other?
为什么非得有这个就没有那个？
I suppose it's difficult for you to do this.
我推测对你来说做这件事情是很困难的。
Oh, learned judge! Oh, wise young man!
噢，博学的法官！噢，聪明的年轻人！