Spheromycin
新生霉素
🗣️ 情景例句
I can only stay a few minutes.
我只能停留几分钟。
For one thing,I've got to drop by the bank to get some money.
首先，我得去银行取一些钱。
Although we can't see these atoms, they really do exist.
虽然我们看不见原子，但它们的确存在。