Every light has its shadow.

有光就有影。

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Every flower, even the fairest, has its shadow beneath it as it swings in the sunlight.

每一朵花，就是最美丽的，在日光下也都有它的黑影的。

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Electrical Engineering and Automation tentacles all walks of life, small to a switch designed to study aerospace aircraft, has its shadow.

电气工程及其自动化的触角伸向各行各业，小到一个开关的设计，大到宇航飞机的研究，都有它的身影。

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The issue of drugs - as at the Olympics - has also cast its shadow across the Paralympics.

BBC: SPORT | Other Sport | Paralympics | Athens advances Paralympics

Instead, that city, in its day Iraq's number two, has become an impoverished shadow of its former economic glory.

ECONOMIST: The Gulf

Its looming shadow has since faded from the public eye, particularly with the death of bin Laden.

CNN: Terrorist group fills power vacuum among Syria rebels