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
Why?
为什么？
So he is gradually getting used to thinking in English.
因此他正养成用英语思维的习惯。
Annie and her brother were sent to a children's home. There the boy died.
安妮和她的弟弟被送往一家孤儿院。弟弟在孤儿院死了。