Gpk
[醫(yī)][=guinea pig kidney antigen]豚鼠腎抗原
??? 情景例句
It was an extremely difficult and dangerous task.
這是一項極度困難的危險的工作。
What's this?
這是什么？
still persists, however; and it is as fierce as it ever was.
依然在進(jìn)行著，而且和以前一樣激烈。