Silver and copper help to get off the dirt in the dark.

银和铜有助于清除黑暗中的污垢。

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He is perhaps the most recognizable man in fashion, almost never seen without his dark glasses, a silver ponytail and fingerless gloves.

这可能是时尚界最为人熟知的形象：黑色眼镜加上银色马尾，再加上一双无指手套。

youdao

The sand turned silver then dark gold as the water flowed away from it.

沙子变成银色，随着海水的退去又变成暗金色。

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While still among the elite top-five shoo-ins for Best Picture (the others being Lincoln, Zero Dark Thirty, Silver Lining Playbook, and Les Miserables), I think this picture needs strong showings in the early awards season to make a comeback and really challenge Lincoln and Zero Dark Thirty at this point.

FORBES: The Best Films Of 2012 - Updated

The researchers suspect that dark coloured birds evolved this silver sheen as a way to show off, while maintaining the benefits of dark coloured feathers.

BBC: Earth News - Birds unveil 'silver wings'

Another dark lining in this silver cloud is that cheaper oil and gas will reduce incentives to produce green energies.

CNN: America, the Saudi Arabia of tomorrow