Propionic
[医]丙酸的
🗣️ 情景例句
I know a friend who can get us free tickets.
我认识一个可以给我们弄到免费票的朋友。
Men are mortal.
人生自古谁无死。
Squeezing through a cleft in the rocks, the pot-holers arrived at an enormous cavern, the size of a huge concert hall.
洞穴探险者从岩石缝里挤身过去，来到一个巨大的洞里，其大小相当于一个音乐厅。