当一个人生来就没有腿，有很多事情做起来都很困难。
When a person is born without legs, there are plenty of things that are difficult to do.
她坐在轮椅上，因为她没有腿。
她去开门，发现门廊前有个坐轮椅的男人，这男人没有胳膊也没有腿。
She answered it, and there on the front porch was a man in a wheel chair who didn't have any arms or legs.
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