Valeronitrile
[化] 戊腈; 丁基氰
🗣️ 情景例句
Well, hi, fellas.
你们大家好。
What's done can't be undone.
无可挽回。 泼水难收？
We regard them as unnecessary creatures that do more harm than good.
我们把昆虫当作害多益少的无用东西。