booster
英 ['bu?st?]
美['bust?]
- n. 升壓機；支持者；擴爆器
英英釋意
- 1. a person who backs a politician or a team etc.;
- "all their supporters came out for the game"
- "they are friends of the library"
- 2. someone who is an active supporter and advocate
- 3. a thief who steals goods that are in a store
- 4. the first stage of a multistage rocket
- 5. an additional dose that makes sure the first dose was effective