emergency
- n. 紧急情况；突发事件；非常时刻
- adj. 紧急的；备用的
英英释意
- 1. a sudden unforeseen crisis (usually involving danger) that requires immediate action;
- "he never knew what to do in an emergency"
- 2. a state in which martial law applies;
- "the governor declared a state of emergency"
- 3. a brake operated by hand; usually operates by mechanical linkage