上面这些网站都有一个朴素的背景，最流行的就是白色和灰调渐变。
All the hotties have a plain background, the most popular being white and greyscale fades.
咖啡色宽腰带和统一色调的低高跟鞋使这条白色长裙似乎更务实。
A wide brown leather belt and low heels in the same hue make this white dress seem less beachy and more businesslike.
暗调图片上的色调差不多全在色调梯尺的黑色部份，白色只占很少面积。
A low key picture is almost entirely at the dark end of the tonal scale, and there are only small areas of light tone.
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