Primycin
伯霉素
🗣️ 情景例句
Are all these goods made in your factory?
所有这些货物都是贵厂生产的吗？
Where is the boarding gate for this flight?
这班飞机的登机门在哪儿？
Now let's go downstairs and have a cup of tea.'
来，咱们下楼去喝杯茶吧。”