英语词汇“speed gear”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	speed gear
释义	WordReference Random House Unabridged Dictionary of American English © 2024 speed′ gear′, an adjustable gear for driving a machine at various speeds.
随便看	back down backdown backdraft backdrop backed back electromotive force backend-to backer backer-up backfall backfield backfill backfire backfist backfit backflap hinge backflash backflip back float backflow backflow valve back focus back formation back forty backgammon

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