So there may be a great working in your life when it all seems dark and you cannot see or trace, but yet God is working.

照样也许你的生活，在你的黑暗中，虽然你看不见什么，可是神正在工作。

youdao

Trace of light in the dark, I so desire.

黑暗中的一丝光芒、让我如此渴望。

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The parquets have different tones and are arranged to create alternating light and dark squares, creating a variety of patterns bound by strips of light wooden boards that trace the outline of areas.

镶木地板有着不同的色调，排列方式的不同形成了亮暗交替的正方形，亮色条木勾勒出多种类型的区域边界。

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Then they sat back and watched, using a kind of glow-in-the-dark technique that allowed them to trace the fate of the cells.

FORBES: Cells Get a Makeover, Cancer Follows: A Path to New Therapies (and a Warning to Stem Cell Alchemists)