Epsa
[医][=embryo placental specific antigen]胚胎胎盘特异性抗原
🗣️ 情景例句
What was that about?
说些什么？
Call me tomorrow if you have time.
明天要有时间就给我打个电话。
Earlier, we were infants and young children, and consequently more vulnerable;
再早一些，我们是幼儿和小孩子，身体较脆弱；