那些云朵原本会投射出一些阴影，挡住部分阳光。

Those clouds would have cast shadows that would have blocked some sunlight out.

云朵飘浮在空中。

Clouds are floating in the sky.

云朵飘过月亮，逐渐把它隐没。

Clouds spread across the moon, fading it out.

云朵又迅速聚集起来。

The clouds speedily gathered again.

实际上，雾气就是落在地面上的云朵。

Indeed a fog is simply a cloud resting on the ground.

然而，云朵究竟由什么构成呢？

But what are the clouds made of?

云朵掠过山峰。

The clouds raked the mountain summits.

她乘着云朵到昆仑山，接着徒步穿过道路及拱门，

She rode to the mountains on a cloud, then continued on foot passed gateways11

这些构成云朵和雨水的水分是怎样进入到空气中的呢？

How did all this water which forms the clouds and the rain get into the air?

这时，云朵不再是白色，它变成了昏暗的灰色，就像是朦胧的清晨时分天空的那层薄雾。

The cloud was no longer white, but of a dull grey colour, like the mistwhich we see on a foggy morning.

白色蒸汽与云朵均是由很小的水粒构成，因为它们的体积实在太小，所以我们称之为水雾。

The white steam and the clouds are both composed of extremely small specks3 of water, so small that they have been called water-dust.