Feritin
肾素, 高血压蛋白原酶
🗣️ 情景例句
Here's my grandfather. He lives in Florida.
这是我祖父 他住在Florida。
You have to be on time. Don't be late.
只准早到，不许迟到。
and that this happens at a rate which differs little from person to person,
衰老的速度在人与人之间相差甚微，