The magic is actually quite simple: Rails uses reflection to copy controller variables into a collection, which is then copied back into the view instance.

这一机制背后的原理其实很简单：Rails首先通过反射将控制器中的变量拷贝到一个容器中，其后又将该容器中的变量拷贝回视图实例。

youdao

That's certainly not because three books is a magic number (although it is a great start!), but rather it's a reflection of the general disinterest in or even intimidation by the subject.

这当然不是因为3是个神奇的数字(虽然这已经是个很棒的开始了！)

youdao

If reflection were magic, he'd be a Magician.

如果胡思乱想也是魔法，那他已经是一个魔法师了。

youdao

The Olympus SZ-12 offers the new Reflection magic filter takes the image and duplicates it across a horizontal or vertical plane of symmetry creating powerful illusions.

ENGADGET: Olympus unveils a cavalcade of point and shoot cameras and a PEN lens at CES