booster
n. 起促进或激励作用的事物；（增强旧药剂效力的）附加剂量，增效剂量；（宇宙飞船的）助推器，推进器；拥护者，热心支持者；（电压的）增压器，（电信号的）放大器；（商店的）窃贼，扒手
复数 boosters
例句
Ground controllers will then fire the booster, sending the satellite into its proper orbit.
届时地面控制人员将点燃助推器，把卫星送入预定轨道。
《柯林斯英汉双解大词典》
Also get physically active, because exercise is a known brain booster.
身体也要动起来，因为锻炼是著名的大脑助推器。
And also get physically active, because exercise is a known brain booster.
而且还要积极锻炼身体，因为锻炼是一种已知的大脑助推器。
