Deus ex machina 天外救星
Deus ex machina (Latin: [ˈdeʊs ɛks ˈmaː.kʰɪ.naː]: or ; plural: dei ex machina) is a Latin calque fromGreekἀπὸ μηχανῆς θεός (apò mēkhanês theós), meaning "god from the machine". The term has evolved to mean a plot device whereby a seemingly unsolvable problem is suddenly and abruptly resolved by the inspired and unexpected intervention of some new event, character, ability or object. Depending on how it is done, it can be intended to allow a story to continue when the writer has "painted himself into a corner" and sees no other way out, to surprise the audience, to bring the tale to a happy ending, or as a comedic device.