About the time the three climbers were halfway down, clouds blotted out the sun.

当3位登山者下到半山腰的时候，云层遮住了太阳。

《柯林斯英汉双解大词典》

If the birds have not flown for three years, they will soar into the clouds. If they have not sung for three years, their songs will take everyone by surprise.

三年不蜚，蜚将冲天；三年不鸣，鸣将惊人。

《新英汉大辞典》

Now that you have an idea about what cloud computing is and what makes up a cloud computing solution, let's take a look at the three major types of clouds.

现在您已经了解了什么是云计算，哪些内容构成云计算解决方案，下面让我们看一下云的三大主要类型。

youdao

So which of these three clouds on the horizon worries me the most?

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But there are three black clouds over this sunny scene.

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Visibility was three miles, but the clouds were at 400 feet.

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