一下几个句子摘自一篇关于活有债务的文章，实在不知如何翻译，还请高手指教，十分感谢！

1.Fiscal adjustment,and the associated focus of policy makers on reducing their deficits and debts in the short term has been known for making contingent forms of support attractive.

2.Policy risk is unpredictable variation in the value of a projet that results from the unpredictability of government policy.

3.Either directly or through a public utility,by signing a contract with an infrastructure firm giving it the right to charge certain prices,by covering the risk related to the construction-cost,exhange-rate,or the firm's future revenue and debt-repayment,and by entering long-term purchase contracts,the government may expose itself to significant fiscal risk.

再次先行拜谢！