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

1. There are four emergency exits in the department store.
   這家百貨公司有四個緊急出口。
2. It is important to keep/stay calm in an emergency.
   在緊急情況下保持鎮(zhèn)靜是很重要的。
3. None of us had seen an emergency like this and we were all flying by the seat of our pants.
   我們誰都沒有遇到過這種緊急情況，只好憑感覺駕駛飛機。
4. In case of emergency, break the glass and press the button.
   遇到緊急情況時，擊碎玻璃罩并摁下按鈕。
5. Her help was critical (ie of great importance) during the emergency.
   在緊急的情況下她的援助至為重要。
6. Ring the bell in an emergency.
   情況緊急時請按鈴。
7. The rioting grew worse and the government declared a state of emergency.
   騷亂惡化，政府只得宣布進入緊急狀態(tài)。

e.mer.gen.cy

n.（名詞）
【復數】 e.mer.gen.cies
A serious situation or occurrence that happens unexpectedly and demands immediate action.
緊急情況：一突然發(fā)生并要求馬上處理的嚴重情況或事件
A condition of urgent need for action or assistance:
緊急：急需行動或幫助的狀況：
例句：
a state of emergency; a voice full of emergency.
緊急狀態(tài)；急切的聲音

adj.（形容詞）
For use during emergencies:
應急的：為緊急事件備用的：
例句：
emergency food rations.
緊急時備用應急的食物配量