Ketine
[化] 2,5-二甲基吡嗪
🗣️ 情景例句
Oh, Grandpa will be so pleased that you're wearing them.
噢 ，戴了它， 祖父一定会非常高兴。
Many good cows have evil calves.
很多好母牛，会生坏小犊。
This rabbit had no natural enemies in the Antipodes,
这种兔子在澳大利亚及新西兰没有天敌，