Vfa
[医][=volatile fatty acid]挥发性脂肪酸
🗣️ 情景例句
Make yourself at home.
勿客气。
Sorry to have kept you waiting.
抱歉使你久等了。
Then he smiled and told me I would receive an extra thousand pounds a year!
然后他微笑了一下告诉我说，我每年将得到1，000 英镑的额外收入。