Leukothrombin
白细胞凝血酶
🗣️ 情景例句
I needed that.
我正需要这个。
They had to cut down a lot of trees to make room for farms.
他们为了为农场增加空间不得不砍倒很多树。
I don't believe we've met.
我们以前没有见过吧？