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打印
Cloud
云
A cloud is a massive droplets in the sky.
云是天空中大量的小水滴。
When the sun heats up the Earth, water on the Earth evaporates and becomes a cloud.
地球受到太陽的烘烤時，地球上的水就會蒸發并凝結成云。
What happens if a cloud gets big and thick? It rains.
如果云變得又大又厚時會怎么樣呢？就會下雨。
Thick clouds are darker than thin clouds.
濃云比薄云的顏色更暗。
So, the sky looks grey right before it rains.
因此，下雨之前天空總是灰蒙蒙的。
Can we grab a cloud? No, we can't.
我們可以抓住云嗎？不能。
A cloud consists of water droplets, so we cannot grab a cloud at all.
云是由水滴組成的，我們根本就抓不住它。
When you touch it, all you can get is wet hands.
你手碰到它時就濕了。
