Metathrombin
变性凝血酶, 无活力凝血酶
🗣️ 情景例句
It all sounded so easy
一切听起来都那么容易。
It is the bridle and spur that makes a good horse.
要把马练好，缰绳靴刺少不了。
I was late for work yesterday，
我昨天上班迟到了。