外酵

例句：

1. 1. The bread wasfermenting in the sun.
   面包在阳光下发酵。
2. 2.The wine is undergoing a natural fermentation process.
   葡萄酒正在进行自然发酵过程。
3. 3. Thecheese is being aged to enhance its flavorand texture.
   奶酪正在被陈化以增强其风味和质地。