| n 用法:
1 thing that boosts 令人鼓舞的事物:
a morale booster, ie sth that makes one feel more confident 精神鼓舞. 用法:
2 device for increasing power or voltage 增强动力或电压的装置. 用法:
3 (also `booster rocket) rocket used to give initial speed to a missile or spacecraft 助推火箭（给予导弹或航天器以初速度的）. 用法:
4 dose or injection (of a medicine or drug) that increases the effect of an earlier one 辅助药剂, 增效药剂（用以加强前次药剂效力的）. |