Schmutzdecke
[医] 去污层(菌类)
🗣️ 情景例句
I have just begun to learn and my serve isn't very good.
我刚刚开始学习，发球不太好。
Faith will move mountains.
精诚所至，金石为开。
So it's not serious, doctor?
那么说，医生，这病并没有什么大不了的？