Ketones
n. 酮类（ketone的复数）
🗣️ 情景例句
I needed that.
我正需要这个。
It is a sad house where the hen crows louder than the cock.
母鸡司晨家不兴。
I'm afraid that won't be possible,much as we'd like to.
尽管我们很想这样做，但恐怕不行了。