Picolinic acid
[建] 啶甲酸-[2]
🧩 词语组成解析
🗣️ 情景例句
This is Gao Qiang in Room 409.
我是409房间的高强。
I only regret that I have but one life to give for my country.
我抱憾的是，只有一次生命能献给祖国。
Yes, you have more than me.
是的，你的比我的多。