extra
英 ['ekstrə]
美['ɛkstrə]
	    - adv. 特别地,非常;另外
 - n. 临时演员;号外;额外的事物;上等产品
 - adj. 额外的,另外收费的;特大的
 
英英释意
- 1. a minor actor in crowd scenes
 
- 2. an additional edition of a newspaper (usually to report a crisis)
 
- 3. something additional of the same kind;
 - "he always carried extras in case of an emergency"