Lacticcasein
乳酪素
🗣️ 情景例句
It is too expensive. How about half the price?
太贵了，半价怎么样？
They intend to stop all traffic through the ports.
他们预定关闭港口的全部交通。
I've worked here since 1989.
我自1989年以来便在这家工厂工作了。