Prothrombinase
凝血酶原酶, 促凝血球蛋白, 凝血因子Ⅱa
🗣️ 情景例句
The advanced exercise class is not so easy, huh?
高级健身班不是那么容易吧， 对不对？
It's difficult to make a decision whithout knowing all the facts.
不了解所有事实而做出决定是困难的。
Last week Mrs.Mills went to London.
上星期米尔斯夫人去了伦敦。