问题描述：
he could only walk on them from then on
翻译
doctor had to cut off his legs below the knees.
Six months later.little Oscar put on his man-make legs.He could only walk on them from then on.but he never felf sad.
翻译
doctor had to cut off his legs below the knees.
Six months later.little Oscar put on his man-make legs.He could only walk on them from then on.but he never felf sad.
问题解答：
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