extra
- 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"