Question

翻译！！！！！！！！！！！！

have you ever seen a double rainbow?they are caused when the droplets reflect the light twice. the colors in the spectrum of the second rainbow are in the opposite order from those in the first. why is a rainbow arc-shaped? this is due to the angle between the sun,the droplet and the viewer. the viewer sees only one color of light,forexample red, reflected from a certain droplet. Droplets a slight distance away are at a slightly different angle, and so the viewer sees only the orange light reflected, and so on through the spectrum. A rainbow is actually circular, which can be seen if viewed from above, such as from an airplane. Usually, however ,half of the circle is below the horizon when seen form below, giving it the appearance of an arc.

Answer 1

我是自己翻译的，你看看合格不：

你有没有见过成对出现的彩虹？她们出现在当光被雨滴反射两次的时候。第二条彩虹的光谱的顺序与第一条彩虹的刚好相反。为什么彩虹是圆弧状的呢？这与阳光、雨滴和观察者之间的角度有关，让观察者从一个特定的雨滴中只看一种颜色时，比如说红色，雨滴距离的微小变化都会导致反射出的角度小的变化，让观察者只看橙色是一样的道理，如此延续，看整个光谱都是一样的道理。事实上，如果从彩虹上部看，彩虹是圆形的，比如说从飞机上看。然而，通常从底部看时，半个圆都在地平线以下，这就导致我们看到的彩虹只是个弧形。

Answer 2

翻译如下：
你见过一个双层彩虹吗?他们是导致液滴反射阳光的时候两次。颜色频谱的第二彩虹相反顺序从那些在first.为什么彩虹弧形吗?这是由于太阳之间的夹角,液滴和观赏者。观众看到只有一个颜色的光,例如红,体现了从某个微滴。一个轻微的距离是滴些微不同的角度,所以观众只能看见橙光反射等通过光谱。彩虹实际上是循环中可以看出,如果从上方看,比如一个飞机。不过通常,一半的圆圈是地平线下看,表,使它像一个电弧。

Answer 3