Epsa
[医][=embryo placental specific antigen]胚胎胎盘特异性抗原
🗣️ 情景例句
I hope you're hungry.
我希望你饿了。
The two contestants are neck and neck with 20 points each.
比赛双方各得20分，打成平局。
You can't buy them in the shop before eight o'clock.
上午八点之前你在商店里是买不到东西的。