Nivemycin
新霉素
🗣️ 情景例句
I hope I can repay you for it.
我希望能报答你。
Who wrote that song?
那支歌曲谁写的？
In man's early days, competition with other creatures must have been critical.
在人类早期，人类与其他生物的竞争一定是必不可少的。