Photos taken by compact cameras are often dark because they're slightly underexposed.
袖珍相機所拍的照片往往比較暗，因為存在輕微的曝光不足。
柯林斯例句
The film is underexposed, so the image is very dark.
這些膠片曝光不足, 因此影像很暗.
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You can also shoot underexposed or overexposed pictures intentionally.
您也可以特意拍攝曝光不足或過量的照片.
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The film was underexposed.
底片曝光不足.
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The child was underexposed to language.
這個孩子對語言曝光不足.
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The shutter speed flashes in the viewfinder display when the subject is underexposed or overexposed.
當被攝體呈欠曝光或過曝光時,快門速度將在取景器中起閃爍.
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