Tfa
[医][=tissue factor activity]组织因子活性
🗣️ 情景例句
He's gone for the summer.
他夏天度假去了。
The world is a ladder for some to go up and others to go down.
世界好似一把梯，有人上去有人下。
Good morning, Mr. WU:?Here's my homework. I was ill on Monday, so it's late.
吴先生，早上好！这是我的英语家庭作业。我星期一病了，所以迟交。