Polypeptin
[医] 圈杆菌素, 环[状]杆菌素, 多肽菌素
🗣️ 情景例句
He never speaks unless he is spoken to.
除非别人先对他开口，他从不先开口。
You are darker than I am.
你比我黑。
Can you tell me where I can find Linda?
你能告诉我在哪可以找到林大吗？