fight-or-flight
adjective [ before noun ] uk/ˌfaɪt.ɔːˈflaɪt/ us/ˌfaɪt̬.ɔːrˈflaɪt/
或战或退（指面对危险时的反应，要么留下应对要么逃走回避）
used to describe the reaction that people have to a dangerous situation, that makes them either stay and deal with it, or run away
a fight-or-flight response 或战或退的反应