只有孙子看到老人行动不便，主动上前帮老人调整了位置。

Only grandchildren to see the mobility of the elderly, tried to take the initiative to help the elderly adjusted position.

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人老了，身体容易失去平衡，再加上骨质也变得脆弱，那可是要命的组合，会引起老人行动不便或是致命的摔倒。

People begin to lose their balance in their old age just as their bones get more fragile, a deadly combination that can lead to crippling or fatal falls.

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