Our new yogurt line uses lactic cultures to improve flavor and shelf life.

我們的新優格系列使用乳酸菌種來提升風味並延長保存期限。

The shipment of lactic acid powder arrived at the warehouse two days late.

那批乳酸粉的貨物晚了兩天才抵達倉庫。

During the factory tour, visitors learned how lactic bacteria turn milk into cheese.

參觀工廠時，訪客了解到乳酸菌如何把牛奶變成起司。