Propionic
[医]丙酸的
🗣️ 情景例句
We need to find time to be together more,
我们确实需要多找时间相聚一起
The fowler's pipe sounds sweet until the bird is caught.
捕禽人笛声悠扬，直吹得鸟儿落网。
Don't touch anything unless your teacher tells you to.
除非老师允许，否则你不要动任何东西。