Nicotimine
煙酰亞胺
??? 情景例句
I never want to see you again.
我再也不想見你了。
A small leak will sink a great ship.
一個小漏洞可能弄沉一艘大輪船。
A short while ago, my sister helped me to carry one of my old bookcases up the stairs.
幾分鐘前，我妹妹幫我把一個舊書櫥抬上了樓。