a castle haunted by spooks的用法和样例：
- The castle is said to be haunted by a phantom.
- The keeper or governor of a castle.
- The school was said to be haunted by a giant ghost.
- The building was said to be haunted by the ghost of a leper woman.
- But to Mozart--- at that time sick, depressed, haunted by the thought of death--- the stranger seemed a messenger from the other world, bidding him write his own requiem.