overdrive
noun [ U ] uk/ˈəʊ.və.draɪv/ us/ˈoʊ.vɚ.draɪv/
超速运转;加倍努力;过度操劳
a state of great activity, effort, or hard work
The official propaganda machine went into overdrive when war broke out. 战争爆发后，官方的宣传机器开始加速运转。
The cast was in overdrive, rehearsing for the first performance. 全体演员正在为首演加倍努力地排练。