The bakery supplier emailed to confirm that our leaven order will ship on Monday.

烘焙原料供應商寄電子郵件確認，我們訂的發酵劑將於週一出貨。

During the meeting, the chef explained why the new leaven makes the bread lighter.

會議中，主廚說明了為什麼新的發酵劑能讓麵包更鬆軟。

Customer service apologized after the wrong leaven arrived in our restaurant's monthly delivery.

我們餐廳的每月進貨送錯了發酵劑，客服人員為此致歉。