Black clouds blocked out the sun.

乌云遮住了太阳。

The lightning flashed out from the black clouds.

乌云中电光闪闪。

As the sun emerged from the black clouds, our hearts lifted for we could go out to play in the park again.

当太阳从乌云后露出来时，我们非常开心，因为我们又可以去公园玩了。

Black clouds are an unmistakable sign of coming rain.

乌云是下雨的明显先兆。

Black clouds forebode a storm.

乌云预示着有暴风雨。

Black clouds make me unhappy.

黑云让我很不开心。

Those black clouds betoken rain.

那些乌云预示有雨。

Those black clouds betoken rain.

那些乌云预示即将下雨。

The black clouds threatened rain.

乌云密布预示着将要下雨。

Black Clouds And Dreams (by Rein).

黑色的云和梦(by Rein)。

After black clouds, clear weather.

乌云过后好晴天。

The sky was barred with black clouds.

天空点缀着条条的黑云。

The heavy black clouds threaten a storm.

乌云密布预示着暴风雨将到来。

The heavy black clouds threatened a storm.

阴云密布预示着一场暴风雨的来临。

Look at the black clouds-there is going to be a storm.

看那些乌云，要下暴雨了。

But somewhere during college the black clouds rolled in.

但是到了大学，乌云出现了。

Black clouds have stagnated over the city for several days.

乌云密布于该城已经好几天了。

But somewhere during college, the black clouds rolled in.

但是到了大学，乌云出现了。

Look at the black clouds. I think it's going to rain soon.

看那些乌云，我觉得天很快要下雨了。

Look at the black clouds in the sky. It must be raining there.

看那天上的黑云，一定是下雨了。

Why do the roiling, black clouds of a thunderstorm produce lightning?

为什么滚滚的天雷，黑色的暴雨云能够产生闪电？

Look at those big black clouds. It is going to rain. Let's hurry.

看那些大片的乌云，就要下雨了，我们快点吧。

In later paintings, the mountain was engulfed in ominous black clouds.

稍后些的画里，这座山已被恶劣的黑云吞没。

Red sky is a sign of good weather, but black clouds are a sign of rain.

红色的天空是好天气的征兆，而乌云则是下雨的征兆。

The image of a divine wooden spoon stirring up black clouds springs to mind.

于是，我的脑海中浮现出一把木质神勺搅动着乌云的场景。

There is no doubt about it. Look at those black clouds coming this way.

毫无疑问。你看看向这边聚拢的黑云就知道了。