The wind blows away the clouds and sky is clear.

风把云吹散，天空变得明朗。

The lecture was on cosmic gas clouds. That's funny!

那个演讲关于宇宙气体云的。多有趣啊!

Sometimes dark clouds have silver linings.

有时山穷水尽，但总会柳暗花明。

They can also track changes in the climate by measuring the clouds.

他们还可以通过测量云层来追踪气候的变化。

Dark clouds are often treated as precursor of a storm.

云通常被当作暴风雨的前兆。

If there are dark clouds, we can expect rain.

如有云，我们预计会下雨。

Those are procedurally generated clouds, Beth.

那序生成的云，贝丝。

The sky is overcast with clouds and the rain is ceaseless.

云雾遮满天空，雨也不停地下。

They concluded that what Hubble had seen was probably just a transient dust cloud.

哈勃望远镜拍摄到的可能只瞬间形成的粉尘云。

In retrospect, clouds were gathering on the horizon.

回想起来，云已经开始在地平线上集结了。

Many of the buildings touched the clouds.

很多高楼耸入云端。

There must be existing clouds to seed.

必须有用来播种的云。

There will be heavy clouds over many areas tomorrow.

明天很多地区将会有多云的天气。

And I said, " No, there's too many clouds."

“看不到，云层太厚了。”

It's as if the trees breathe out clouds.

如同树木在呼出云。

In the afternoon, there were black clouds in the sky.

到了下午，天空中出现了云。下。

Wildebeests follow rain clouds in anticipation of new green shoots.

角马群跟随云移动，以期找到新鲜的嫩草。

I thought it would rain. There were heavy clouds this morning.

我还以为要下雨呢， 早上有很多云的呀。

And what the heck causes those massive clouds of blowing desert sand anyway?

到底什么原因引起了这巨大的沙漠飞沙云团？

The stuff they're cooling here is tiny clouds of molecules.

他们在这里冷却的物质微小的分子云。