deus ex machina
/ˈdeɪʊseksˈmækɪnə/noun
- an unexpected power or event saving a seemingly hopeless situation, especially as a contrived plot device in a play or novel（戏剧或小说中）出人意料的解围情节, 摆脱绝境的情节; （生活中）突然出现的转机, 意料不到的转危为安。
词源
late 17th cent.: modern Latin， translation of Greek theos ek mēkhanēs, 'god from the machinery'. In Greek theatre， actors representing gods were suspended above the stage， the denouement of the play being brought about by their intervention.