Lactonic ketone
[机] 内酯
🧩 词语组成解析
a. [化]内酯酸的, 无水氢氧酸类的
ketone
['ki:toʊn]
n. 酮;
🗣️ 情景例句
This is terrible.
真是太糟了。
Kill two birds with one stone.
一举两得。
It's very kind of you to call.
谢谢你来告诉我。