state of emergency
noun [ C ] uk/ˌsteɪt əv ɪˈmɜː.dʒən.si/ us/ˌsteɪt əv ɪˈmɝː.dʒən.si/
紧急状态
a temporary system of rules to deal with an extremely dangerous or difficult situation
After the floods the government declared a state of emergency. 洪水爆发后，政府宣布进入紧急状态。