Quinaldic acid
[化] 喹哪啶酸; 喹啉-2-羧酸
🧩 词语组成解析
🗣️ 情景例句
If you had to describe the book in one sentence,
假如要你用一句话来描述这本书，
Do you want to airmail it or not?
你想发航空信吗？
Where are you from?
你从哪儿来的？