Epsa
[医][=embryo placental specific antigen]胚胎胎盘特异性抗原
🗣️ 情景例句
It's good, but it's a little expensive.
很好，不过价格有一点贵。
Love is the touchstone of virtue.
爱情是美德的试金石。
He knew I collected match boxes and asked me whether my collection was growing.
他知道我收集火柴盒，于是问我收藏的米柴盒是否在增加。