Look up and see dark storm clouds.

抬头看见阴云密布。

youdao

Suddenly, the sky becomes dark. I look up and see dark storm clouds.

突然，天空变黑了，我抬头看到黑色的乌云。

youdao

Think of bad thoughts as dark storm clouds quickly moving through the sky (your brain).

考虑坏的想法就想一片黑暗的乌云快速的在你的脑海中游荡。

youdao

Dark storm clouds and the threat of lightening are keeping space shuttle Discovery on the ground.

NPR: NASA Sets New Discovery Launch Date for July 4

In video of the storm, the dark funnel cloud could be seen marching slowly across the green landscape.

NPR: Medical Examiner: 24 Dead In Oklahoma Twister

It means strengthening power systems with smarter designs to prevent the multi-day outages that left hundreds of thousands in the cold and dark for days following the storm.

FORBES: Rebuilding In A Warming World