Porcillin
(=polcillin)极枯草菌素
🗣️ 情景例句
We are lucky to have you, Marilyn.
拥有你是我们的幸运， Marilyn。
How many cans are you going to take?
你要拿几罐？
A simple experiment will help us a little further.
再做一个简单的实验可以帮助我们进一步理解这个问题。