这些盘子的边是镀金的.The plates have a gilt edge.那只戒指不过是镀金的.The ring was only plated ( with gold )." 朋友们, 这只不过是些镀金的铅饼!" Friends, they are only gilded disks of lead! "...
They also play an important role in immune reactions.它们在免疫反应中也起着重要的作用.Nonbiological degradation processes play an important role in the dissipation of many pesticides in soil.非生物降解过程在消除土壤中的许多农药方面起着重要的作用.Variational princ...