Fpf
[医][=fetal pulmonary fluid]胎儿肺液
🗣️ 情景例句
Oh, that's too bad, Robbie.
啊 ，那太遗憾了， Robbie。
No man is a hero to his valet.
仆从目中无英雄。
Although we can't see these atoms, they really do exist.
虽然我们看不见原子，但它们的确存在。