He has found that their brains remodel to use variations in pitch, tone and volume - in the same way sighted people use differences in light and colour - to build up a picture of their surroundings.

他发现，他们的大脑会重组成使用不同的音阶、音调和音量——我们的视力也是用同样方式感知亮度和色彩的差别——以建立自身周围环境的图像。

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But now my skin tone looks better and the colour of my eyes is deeper.

但是现在我的肤色看起来好多了，而且我的眼睛也看起来更深邃了。

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The use of lightweight zinc cladding gives the upper storey a muted tone, texture and colour that subtly merges with the surrounding environment.

使用轻量的锌覆盖层为上层的楼层提供了柔和的色调、质地和颜色，使之巧妙地融入周围环境中。

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In Serjeh, a village perched on a hill overlooking olive trees rooted in earth the colour of terracotta, the bulky, uniformed men of Suqur al-Sham (Falcons of Syria) strike a sterner tone.

ECONOMIST: Syria��s rebels