一辆洒水车正在为路面洒水降温,弹跳在半空中的弧形小水珠在阳光照射下,形成了美丽的彩虹。彩虹的两头,一头在道路左侧的花坛上,一头在道路右边的花坛上,形成了一座移动的彩虹桥。
A street prinkle is cool to the crowd,and water send up a mist continuously,in which last,during sunshine, there will be perpetual rainbows.
彩虹是因为阳光照射到空中接近圆型的小水滴,造成色散及反射而形成。在晴朗的天气下,背对阳光在空中洒水或喷洒水雾,也可以人工制造彩虹。
This is because even though all the raindrops out there are reflecting rainbow colors, they do so in very narrow beams.
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