Picolinic acid
[建] 啶甲酸-[2]
🧩 词语组成解析
🗣️ 情景例句
I feel like an old man.
我感觉像一个老头。
I have an interview next week.
我下周要参加考试。
'What a pity!' Susan exclaimed.
“真可惜！”苏珊大声说。