Over the snow peaks clouds were forming, heavy and dark; probably it would rain later on but now the shadows were very sharp with the sun bright and clear.

云在雪山顶上形成，沉重而又暗黑，或许稍后会下雨，可是现在阴影非常强烈，阳光明亮又清晰。

youdao

But if HMV's executives had looked out from that luxury beach hotel in Marbella, they might just have seen a few dark clouds forming on the horizon.

BBC: HMV: How the top dog lost its bite