艺术家们高度熟练地使用，甚至增强了洞穴墙壁的自然形状，使他们的绘画具有深度和透视感，以及这些动物的动感和活力。
The artists were highly skilled at using, or even enhancing, the natural shape of the cave walls to give depth and perspectives to their drawings, the sense of motion and vitality in these animals.
在本专栏中，我们将考察如何利用以前专栏中开发的架构透视图，设计高度实用的移动应用程序用户界面。
In this article, I'll examine the entire process of developing software for mobile devices.
她画了一排由近而远高度递减的树以演示透视图的规律。
She drew a row of trees receding into the distance to demonstrate the laws of perspective.
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