Polypeptin
[医] 圈杆菌素, 环[状]杆菌素, 多肽菌素
🗣️ 情景例句
so that we can record our thoughts about the trip.
以便我们能录下旅行中的感想。
We've got to get a sofa and a chair for the living room.
我们必须有一张沙发和椅子放在客厅。
Then sweep the floor.
然后扫扫地。