Nicotene
烟酸
🗣️ 情景例句
I read everything I can get my hands on but I like ghosts stories best.
我随意拿起什么便看什么，但我最喜欢看鬼故事。
A horse that will not carry a saddle must have no oats.
不愿加鞍的马，不得吃燕麦。
tap water that is too hot to touch can be left to cool and is generally safe to drink.
水管中流出的烫手的水可以留下来冷却。这种水一般是安全的。