爸爸妈妈当然经常给孩子零花钱，但是，叔舅婶姨也是孩子们额外收入来源。 人也可以做 supply、source的主语。

Father, of course, a regularsupply of pocket money, but uncles and aunts are always a source ofextra income.

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我们家有五个人，我的爸爸是滦河发电厂的，妈妈也是滦河发电厂的，爷爷还是滦河发电厂的，但退休了，奶奶没有工作。

We have five people at home, my dad was in luanhe power plant, mother in luanhe power plant, Grandpa was in luanhe power plant, but retired, his grandmother did not work.

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