Fena
[医][=excreted fraction of filtered sodium]滤过钠排泄部分
🗣️ 情景例句
When trouble comes your neighbors are the ones who will be there.
邻居在你有困难的时候会帮助你。
Beg from beggers and you'll never be rich.
向乞丐乞讨，永远发不了财。
and that is what all patients demand of their doctors----to be cured at no inconvenience to themselves.
病要治好，但不要太麻烦。