Their arms were tied with rope, but their legs were free and they could walk.

他们的手臂用绳子捆着，但他们的脚是自由的，可以走路。

youdao

Once upon a time, there was a mysterious jungle. The trees in the woods could talk, and they could walk.

很久很久以前，有一片神秘地丛林，丛林里的树木都会说话，也可以走路。

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At first they were unable to move their hind legs at all, but by the end of the study they could support their weight and walk almost perfectly.

起初，它们根本无法移动后腿，但在研究结束时，这些老鼠可以承担全身的重量，而且可以近乎完美地步行。

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