Convertin
(血清凝血酶原)转变加速因子
🔁 扩展释义
【医】 转变素, 转化素
🗣️ 情景例句
It's time we hired a secretary to answer the phones.
我们早就该请一个秘书接听电话了。
My brother is not quite twenty-five.
我的兄弟不够25岁。
No, not any more. It used to be free but now you have to pay to get in.
不，不再免费了。过去是免费，可现在得付钱才能进去呢。