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
But if I have my tonsils out tomorrow,
但是我如果明天切除扁桃腺，
The cobbler must stick to his last.
安分守己。
We'd better not just talk; let's go to the river to bathe.
我们最好别光顾说了；咱们去河里游泳吧。