请英语达人 进来帮忙 翻译一些句子!谢谢!谢绝翻译机!

1.由于资金缺乏、疏于管理等原因,美国基础设施的更新换代依然步履维艰.
1.Because of lack of funds,neglect management and other reasons,American infrastructure renewal of still walking struggling.
2.基础设施评分为D、危及国家未来繁荣、两大根源问题、缺钱：各级政府投资不足、逐利：保养程序缺乏效率.
Infrastructure score for D,endanger national future prosperity,two big root problem,lack of money:governments at different levels underinvestment,profit:maintenance procedure the lack of efficiency
3.四分之一有缺陷或已过时、需一千亿美元维修费、设备陈旧引发严重事故.
One-fourth of defective or obsolete,to $100bn obsolete equipment maintenance,causing serious accidents.
4.美国政府已经意识到基础设施建设的重要性
The United States government has already realized the importance of the construction of infrastructure