各色各状造型的“蛟龙”如箭离弦,顺流而下, 欲争群龙首.Rows of dragons pull downstream, each striving to take the lead.为近代科学造型的人都是以数学家的身份去探索自然.The men who fashioned modern science approached the study of nature as mathematicians.沥青是流动性的材料, 因此可以用来覆...
Lutein is mainly found at the eye's retina and macular.叶黄素主要存在于视网膜及黄斑部.Lutein is a kind of natural pigment, extracted scientifically from natural marigold.叶黄素是以万寿菊花为原料, 采用科学方法提取精制而成的天然色素.Lutein is dihydroxy - carote...