Lacticcasein
乳酪素
🗣️ 情景例句
Mrs. Smith, You're a wonderful cook.
史密斯夫人，你是一个了不起厨师。
Put your shoulder to the wheel.
努力工作。
That's a big box. Is it heavy? Please let me help you.
这是个大盒子。重吗？让我来帮你。