In order to frighten away the ghost, but also for the ghost light line, to guide their return.

一来为了吓走鬼魂，同时也为鬼魂照亮路线，引导其回归。

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All the bonfire and lights, one to frighten away the ghost, but also for the ghost light line, to guide their return.

所有篝火及灯火，一来为了吓走鬼魂，同时也为鬼魂照亮路线，引导其回归。

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When light inputs the surface of optical elements, there is reflection as well as refraction, so ghost light come into being, its focus is called ghost image.

光学元件表面在折射时都存在反射，从而存在设计意图之外的杂散光，其会聚点即所谓鬼点。

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After some moments the ghost light will appear down the road.

FORBES: Students Use iPhones to Debunk Ghost Story

Written by John Kamps ("Zathura") and David Koepp ("Indiana Jones and the Kingdom of the Crystal Skull") and directed by Koepp, "Ghost Town" is a light comedy about a misanthropic dentist, Bertram Pincus, who develops an unwelcome sixth sense after losing his vital signs for several minutes during a routine colonoscopy.

CNN: Review: Gervais gives edge to 'Ghost Town'

Dr. SCHAWINSKI: The reason we call it a ghost is because we believe it is something called a light echo.

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