n.助推火箭，(电器的)增压机，升压器，加强剂量，帮助（或激励、改善）…的事物，（尤指政治上的）支持者，拥护者

原形：booster复数：boosters

I need a booster shot for my flu vaccine.
我需要加强剂的流感疫苗。
The economic stimulus package is considered a booster for small businesses.
这项经济刺激计划被视为小型企业的提振措施。
She's using a signal booster to get better Wi-Fi in her apartment.
她用信号增强器来改善公寓里的Wi-Fi。
The booster rocket propelled the spacecraft into orbit.
增压火箭将宇宙飞船推进了轨道。
After a long break, I needed a caffeine booster to stay awake.
长时间休息后，我需要喝杯咖啡提神。
The new tax cuts are a booster for consumer spending.
新的减税政策是刺激消费者支出的举措。
The team got a morale booster with their first win of the season.
队伍在赛季首胜中得到了士气的提升。
The engine requires a fuel booster to operate efficiently at high altitudes.
发动机在高海拔地区需要燃料增压器才能高效运行。
His mentor's encouragement was a real confidence booster.
他的导师的鼓励真的增强了他的自信心。
The sound system has an audio booster to enhance the quality of the music.
音响系统有音频增强器来提高音乐的质量。