Vfas
(vfa 的复数) [医][=volatile fatty acid]挥发性脂肪酸
🗣️ 情景例句
How are you?
你好吗？
Men know where they were born, not where they shall die.
人能知其生于何地，不能知其死于何方。
The little baskets were empty and the ground was covered with pieces of paper, cigarette ends, old tyres, empty bottles and rusty tins.
废物筐是空的，而满地都是纸片、烟头、旧轮胎，空瓶子和生锈的空罐头盒。