Shutters are wooden or metal covers fitted on the outside of a window. They can be opened to let in the light, or closed to keep out the sun or the cold. 百叶窗
noun [专属名词] 百叶窗，活动护窗；（照相机的）快门；（风琴的）开闭器
She opened the shutters and gazed out over village roofs. 她打开了百叶窗，朝村里的房顶望去。
verb [vt. 及物动词] <美>使停业，使倒闭；关上（窗户）的百叶窗，合上（建筑）的遮光板
Shall I press the shutter? 我要按快门吗？
