Dinicotinic acid
[化] 烟碱二酸; 吡啶二甲酸
🧩 词语组成解析
🗣️ 情景例句
This job is killing me.
这活儿都快把我累死了。
He emerged as leader at the age of thirty.
他在30岁时出人头地成为领袖。
I was almost there when a sarcastic voice below said,
当我几乎到了窗口，这时下面一个讽刺的声音说，