Flavin: Any of a class of organic compounds, pale yellow biological pigments that fluoresce green.黄素: 一组浅黄 、 绿萤光生物色素,在植物和动物组织中分布很广,含量少.FAD ( flavin adenine dinucleotide ) A derivative of riboflavin that is a coenzyme in ...
Kids nowadays love to eat junk food every day.现在的小孩每天都喜欢吃速食.How often do you eat junk food?你多久吃一次无营养食品?What kinds of junk food do you eat?你吃什么样的无营养食品?...
From ingrained habit he paused to straighten up the bed.出于长期的习惯,他停下来整理床铺。He has a curious habit of scratching his ear while he speaks.他有一种奇怪的习惯, 一讲话就搔耳朵。Mark does have a habit of allowing his temperament to get the bette...