Quinaldic acid
[化] 喹哪啶酸; 喹啉-2-羧酸
🧩 词语组成解析
🗣️ 情景例句
Who am I, you old rascal?
我是谁 ？你这个老玩童。
How many pieces are you going to take?
你要拿几支？
Think carefully before you act.
三思而后行。