Prothrombinase
凝血酶原酶, 促凝血球蛋白, 凝血因子Ⅱa
🗣️ 情景例句
Why did you stop working?
你为什么要退休？
I want to make a local call.
我要打个市内电话。
Is there anything else that I ought to get?
我还该弄点别的什么东西吗？