A calendar on your cell phone screen is easy to use, and so is a large paper calendar that hangs on your wall.
手机屏幕上的日历使用起来很方便，挂在墙上的大型纸质日历也是如此。
2
At the entrance to a Chinese garden, there is usually a huge stone or wall to screen your view.
在中国园林的入口处，通常有一块巨石或墙来遮挡你的视线。
3
The system first establishes a baseline for an approaching individual, then flashes the potentially stimulating image on a screen or wall in the subject's eyeline.