Dinicotinic acid
[化] 烟碱二酸; 吡啶二甲酸
🧩 词语组成解析
🗣️ 情景例句
and he doesn't know anything
而他毫无所知
Lawsuits consume time, and money, and rest, and friends.
诉讼将消耗时间、金钱、休息和失去朋友。
Why did you come here?
你为什么来这儿呢？