名词 overdrive:

1. the state of high or excessive activity or productivity or concentration

2. a high gear used at high speeds to maintain the driving speed with less output power

动词 overdrive:

1. drive or work too hard

2. make use of too often or too extensively

overprep.在 ... 的上方；遍及地；在 ... 期间adv.穿过；完全覆盖；结束；落下n.(板球中)每个投球手一次连续所投出的球数overdamvt.堤坝淹没