Activase
爱克提畏斯（用于组织纤维酶原激活质制剂的商标）
🗣️ 情景例句
I guess I'd better tear up the letter and start over again.
我想我应该把信撕掉重新再写。
We used to have a lot of fun when we were that age.
当我们是变老时，我们过去常有很多趣事。
Where does the teacher stand?
老师站在哪里？