Vfa
[医][=volatile fatty acid]挥发性脂肪酸
🗣️ 情景例句
That's great.
真棒！
I do not know whether you realize it, but this condition is essential to us.
我不知道你是否了解，但是，这个条件对我们是必要的。
Bring the picnic basket up here, under this big tree, said Ann.
“把野餐篮子拿到这儿来，放在这棵大树下，”安说。