A window blind

In the multimedia room there is an expandable shelf with a projector sliding down from the ceiling and a movable projection screen right by the window acting also as a sun blind.

在多媒体室有可扩展的架子，带有从天花板滑下的投影，还有可移动投影屏，正好在窗户旁也能充当窗帘。

"Johari Window" is a psychology theory which divides the information of personal communication into four areas: open area, blind area, hidden area and unknown area.

心理学理论“约哈里之窗”将人际交往中信息沟通的状况分为四个区域：开放区、盲区、隐藏区和未知区。

At the windy window, the widow finds a blind snake winding.

在当风的窗口，孀妇发现有条盲眼蛇在游动。