Carboxylic acid
高中 Senior High[化] 羧酸
🧩 词语组成解析
[机] 羧基的
🗣️ 情景例句
The movie was a smash.
这个电影很过瘾。
How was your flight? Was it comfortable?
你坐的班机怎么样？还舒服吗？
He began his diet a week ago.
他是一星期前开始节食的。