Polypeptin
[医] 圈杆菌素, 环[状]杆菌素, 多肽菌素
🗣️ 情景例句
Well, maybe you could come next week sometime.
那样的话，也许你可以在下个星期的某个时候来。
It is no use crying over spilt milk.
泼水难收。
They all went up some narrow steps into a large room.
他们全都登上这些狭窄的台阶，接着进入一个大房间。