[mass noun]the action of moving displayed text or graphics up or down on a computer screen in order to view different parts of them 为了显示文章(或图形)不同的部分在电脑屏幕上上下移动
adjective
[attrib.](of an ornamental design or carving) made to resemble a partly unrolled scroll of parchment (装饰设计,雕刻)像半开的羊皮纸书卷的