释义
n.
the action of moving displayed text or graphics up or down on a computer screen in order to view different parts of them
（显示的文章或图形的不同部分）在电脑屏幕上的上下移动。
adj.
(of an ornamental design or carving)made to resemble a partly unrolled scroll of parchment
（装饰设计，雕刻）像涡卷形的。
