请教商务英语翻译谢谢Hi, George. This is Kristoff calling from Australi

请教商务英语翻译谢谢
Hi, George. This is Kristoff calling from Australia. It's about the contract negotiation for constructing the factory in Melbourne. Our client doesn't want to agree the date for the completion of the second stage, even though it was accepted when we put in our tender. We specified that we couldn't complete in less than six months. Now they're saying they want it brought forward a month. This is a problem, because they want to put in a penalty clause which states that for every week we are late, we have to pay three per cent of the total cost. I can't agree to this at all. We're already using our best technical employees, and the only way we can complete in five months is if we use more unskilled staff right from the beginning, which'll mean a substantial investment which we hadn't budgeted for. There's one incentive, however; instead of the usual bonus, we'll be awarded the contract for their next project if we can meet their new deadline. 中 even though it was accepted when we put in our tender. We specified that we couldn't complete in less than six months. 和 Now they're saying they want it brought forward a month. This is a problem, because they want to put in a penalty clause which states that for every week we are late, 这几句意思 谢谢

尽管在投标的时候,（六个月的期限）说是没问题,我们也特别提到我们在六个月内没办法完成.
现在他们希望能把完成时间提前一个月,问题是如果我们完不成,每延迟一个星期,我们都要支付3%的逾期费.