public EF公共元文件publicadj.公众的；公共的；公开的n.民众；公众；大众public elective lesson公共选修课public health policies公共卫生决策public function theory公共职能理论public attack behavior公开攻击行为public fire protection公共消防public-private ratio公私立比public opinion monitor舆论监督public telephone booth公用电话亭public welfare lottery公益彩券public policy failures公共政策失败

1. We need to further reduce our ratio of public debt to GDP to give us the flexibility to meet the demands of our aging population.
   我们需要进一步降低公债占国内生产总值的比率，亦带来更多的灵活性，来满足人口老龄化的要求。
2. But if they keep spending heedlessly, they will saddle the economy with a heavy burden of public debt which may crowd out private investment.
   但是如果他们始终随意地投资，他们将会给经济带来严重的公债压力，这些负担可能会挤出私人投资资金。