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[今日口语] She is in a quandary about which university to choose.

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toothed wheel

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齿轮,齿缘轮
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  1. The tab contains a toothed wheel which is driven at a high angular velocity by the impinging airstreams
    舵片上有一个带齿的轮,这个轮受到气流的冲击而高速转动。收藏
  2. Gear: Machine component consisting of a toothed wheel attached to a rotating shaft.
    齿轮:一种机械零件,固定在旋转轴上的带齿的轮子。收藏

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