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
Who are you rooming with?
你和谁同屋？
Remember me to your father-in-law please.
请替我问候你的岳父。
Mum, this is my teacher, Miss Gao.
妈妈，这位是我的老师，高小姐。