Panmycin
[微]盘霉素
🔁 扩展释义
【化】 四环素
🗣️ 情景例句
How many people are there in your family?
您家有几口人？
No one can call back yesterday;Yesterday will not be called again.
昨日不复来。
We had spent several days in a small town and visited a number of old churches in the vicinity.
我们在一座小镇上逗留了几天，参观了附近的许多古老的教堂。