niacin是什么意思
音标:英 [ˈnaɪəsɪn]美 [ˈnaɪəsɪn]
烟碱酸[化] 烟酸
a B vitamin essential for the normal function of the nervous system and the gastrointestinal tract
niacin的用法和例句：
1.
It’s the… it’s the niacin, it can have that effect.
是 是烟酸 它会有这种作用
2.
I, uh, took this thing called niacin flush.
我吃了烟碱酸潮红[维生素B3]
3.
Carrots turn you yellow, the niacin turns you red.
胡罗卜让你变黄 烟酸让你变红
