The ghost of something, especially of something bad that has happened, is the memory of it.阴魂 (指对坏事的记忆)
What did one ghost say to the other ghost?这个鬼对另一个鬼说什么了?
ghost 强调魂,并不是邪恶的象征
‘Ghost’ --- 影片《人鬼情未了》的英文名