1. Check the shutter speed dial and aperture ring to make sure you have the correct exposure. 
   检查快门速度及光圈以确保正确的曝光量。
2. a transparent cell with two electrodes between two polarizing media; passes light only if the two planes of polarization are parallel; used as a high-speed shutter or to modulate a laser beam. 
   在两个偏振媒体之间的带有两个电极的透明电池；只有当两个偏振位面平行时光线才能通过。
3. The shutter won't work. 
   快门坏了。
4. You're a shutter bug. 
   你是个摄影迷。
5. The shutter will not work. 
   快门坏了。

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