light可数吗？

　　例句：

　　A sensor channels the light signal along an optical fibre.

　　传感器沿光导纤维输送光信号。

　　The photochemical reactions transform the light into electrical impulses.

　　光化学反应使光变为电脉冲。

　　She had come to see the problem in a new light.

　　她开始用新的`角度来看待这个问题。

　　Bring it into the light so I can see it.

　　把它拿到亮的地方，好让我看见。

　　Could you move ─ you're in my light.

　　挪动一下好吗？你挡住我的光线了。