1、A vitamer is an alternative form of a vitamin that has similar biological activity in the body.
(维他命活性形式/衍生物是维他命在体内具有类似生物活性的替代形式。)
2、Some vitamins have multiple vitamers, each with slightly different functions in the body.
(一些维他命具有多种活性形式/衍生物,在体内各自具有稍微不同的功能。)