"Get the guy in the purple shirt." — "All right, my man."“把那个穿紫衬衫的家伙叫过来。”——“好的，老兄。”Its large leaves often show a delicate purple tint...它的大叶子往往带点紫色。The major anthocyanins in purple sweet potato are cyanidin and peonidin ...
保存得太久的食品会变坏,是因为受到酵母菌, 霉菌和细菌的侵袭.Food which is kept too long decays because it is attacked by yeasts, molds and bacteria.防止啤酒变坏的主要方法是用纯酵母菌株发酵.The principal methods of avoiding spoilage are the use of pure yeast strains as ...