百科解釋
緊急情況, 突然事件, 非常時刻, 緊急事件
英英解釋: 名詞emergency:
1. a sudden unforeseen crisis (usually involving danger) that requires immediate action
同義詞:exigency, pinch
2. a state in which martial law applies
3. a brake operated by hand; usually operates by mechanical linkage
同義詞:hand brake, emergency brake, parking brake