Our fingers bend at the knuckle.

我们的手指在指关节处弯曲。

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First the fingers bend upwards, and then downwards, all in a fraction of a second.

抓着岩点的手指首先向上弯曲，然后向下弯曲，整个过程不超过一秒钟。

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Using just thumbs and fingers, bend it in the middle to form a right-angle.

只用拇指和手指，从中间把它弯曲成直角。

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But he had forgotten that he could not bend his fingers.

VOA: special.2010.05.01

Using just thumbs and fingers, bend it in the middle to form a right-angle.

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And I was amazed that I could easily bend my fingers.

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She watched as her grandmother struggled to thread a needle with fingers that were beginning to bend at odd angles, like old trees.

NEWYORKER: The Visitor