Pka
[医][=prekallikrein activator]前激肽释放酶激活剂
🗣️ 情景例句
I see, it's not easy to marry and start a family. So when's the wedding?
我明白，要组织一个家庭并不容易。那么婚礼订在哪天举行？
Don't look wise.
别自作聪明。
It's not you, is it?
这不是你，对吗？