Niacin
n. 烟碱酸\\n[化] 烟酸
📖 牛津释义
niacin
n[U]
vitamin found in meat, yeast and some cereals 烟碱酸（肉类、 酵母和某些谷物中的维生素）.
🗣️ 情景例句
What are you doing this weekend?
你本周末打算干什么？
From words to deeds is a great space.
言行之间，大有距离。
but by now the Thermopylae was over five hundred miles ahead.
但此时，“赛姆皮雷”号早已在500多英里之遥了。