shutter

1. N-COUNT 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

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。

2. N-COUNT The shutter in a camera is the part which opens to allow light through the lens when a photograph is taken. (照相机的) 快门

There are a few things you should check before pressing the shutter release. 在按快门之前，有几件事情你应该检查。