试着与其他企业主探讨他们是如何计算创业成本的，具体询问他们往往会忽略的费用项目。
Talk to other business owners about how they figured out start-up costs and ask specifically about expenses they forgot.
目前还没有预测海水淡化项目的总费用或具体需用多少立方的海水。
There is no estimate yet of the total cost of the project or the volume of water involved.
至于房产抵押危机解决方案的最终成本——赔偿金和法律费用的具体数字，目前大家只能猜测。
The ultimate cost of the mortgage crisis in terms of settlements, awardsand legal fees can only be guessed at.
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