Epsa
[医][=embryo placental specific antigen]胚胎胎盘特异性抗原
🗣️ 情景例句
I would like to know about your honeymoon travel packages.
我想要知道你们办的有关蜜月旅行计划。
The electric fan is out of order.
这电风扇出毛病了。
The big clock which used to strike the hours day and night was damaged many years ago and has been silent ever since.
教堂的钟很大，以前不分昼夜打点报时，但很多年前遭到毁坏，从此便无声无息了。