他回答记者的问题是很机敏的.His answer to the journalist is a shrewd one.丹尼尔大夫是一位天生诙谐而反应机敏的人.Dr. Daniel was a gleg man of a jocose nature.机敏的头脑再加上经济学学位作后盾使他对金融问题把握非常准。A nimble mind backed by a degree in economics gave him a firm grasp...
Certain pigment colours were painted on to dry plaster using tempera (where egg yolk is used to fix the pigment).使用蛋彩画颜料（内含可以定色的蛋黄）在干石膏上绘出了特定颜色。So studying Tempera is significant to develop the modern painting material.研...
This paper summarized classification, functions, varieties of colorant and factors affecting coloration of salmon and bulltrout.本文阐述了着色剂的分类及作用 、 着色剂种类的选择及影响鲑鳟鱼着色效果的因素....