| 单词 | overdrive |
| 释义 | overdrive v. /oh'veuhr druyv"/; n. /oh"veuhr druyv'/, v. , overdrove, overdriven, overdriving, n. v.t. 1. to push or carry to excess; overwork. 2. to drive too hard. n. 3. Mach. , Auto. a device containing a gear set at such ratio and arrangement as to provide a drive shaft speed greater than the engine crankshaft speed. 4. Informal. an intense state of activity or productivity: The political campaign has shifted into overdrive. [bef. 950; ME overdriven to cover over, overpower; OE oferdrifan to drive away, overthrow. See OVER-, DRIVE] |
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