灵机

sudden inspiration / bright idea / clever trick

(bound form) machine; mechanism / (bound form) aircraft / (bound form) an opportunity / (bound form) crucial point; pivot / (bound form) quick-witted; flexible / (bound form) organic

quick / alert / efficacious / effective / to come true / spirit / departed soul / coffin

a bright idea suddenly occurs (idiom); to hit upon an inspiration / to be struck by a brainwave