Pka
[医][=prekallikrein activator]前激肽释放酶激活剂
🗣️ 情景例句
Do you have anything to declare for customs?
有什么要申报呀？
We are sorry to delay the shipment because our manufacturer has met unexpected difficulties.
恕延期货船，因为我们厂家遇到了预料不到的困难。
I have 4 books and 2 magazines to check out.
我有4本书和2本杂志要借。