n.汽车超速档；注意力高度集中
v.驱使过度；使（人）操劳过度
She always goes into overdrive (ie starts working very hard) before the holidays. 她总是在放假前特别努力。
She always goes into overdrive before the holidays. 她总是在放假前特别努力。
adv.超速传动
adj.超速传动的(过载的；上动的)
