Precipitinogen
n. [医]沉淀原, 沉淀素原
🗣️ 情景例句
He made up his mind to give up smoking.
他下决心戒烟。
My sister worked as a secretary before she got married.
在她结婚了以前，我的姐姐为一位秘书。
We've got plenty of time. We needn't hurry.
我们有大把时间，不急。