Precipitinogen
n. [医]沉淀原, 沉淀素原
🗣️ 情景例句
Michelle knows all about it.
Michelle已经全知道了。
Sorry, sir. But it's our graduation day.
对不起，不过，今天是毕业的日子嘛。
He had been there for nearly ten hours.
他已经在烟囱里被困了将近10个小时。