Vfa
[医][=volatile fatty acid]挥发性脂肪酸
🗣️ 情景例句
I know who you are.
我知道你是谁。
We can't make a decision without thinking it over.
我们不能不考虑，就作决定。
decided to take some presents to a children's hospital.
盖茨决定送些礼物给儿童医院。