a training camp for new members of the armed forces, where they have to work hard 新兵训练营 He had recently graduated from Marine Corps boot camp. 他最近从海军陆战队新兵训练营毕业。
a type of prison for young criminals where there is strict discipline （青少年犯的）改造营 a short course of very hard physical training 短期高强度体能训练 I joined a boot camp to get fit. 我参加了体能短训营进行健身。 - (figurative)
You can cram for the exam at a one-week boot camp. 你可以参加为期一周的集训课以全力备考。