Picolinic acid
[建] 啶甲酸-[2]
🧩 词语组成解析
🗣️ 情景例句
I maintain that the most important thing is having good friends.
我认为最重要的是有好朋友。
Shallow streams make most din.
修养不深，高谈阔论。
Hi, this is Steve. Is Pippa there?
你好。我是史蒂夫。皮帕在那吗？