志愿者被要求给一项假定的公共服务项目估价，研究人员则通过脑部扫描来确定志愿者是否在说谎。
The scans helped the researchers determine whether or not the participants were lying when they said how much they valued a hypothetical service.
我应该建立一个财务模型，充分准备好谈论项目和估价等的各种假设，解释我选择哪只股票及其中原因。
It was expected that I would have built a financial model, be able to readily talk through the assumptions behind my projections and valuation and then explain which stocks I liked and why.
评估和预测对于软件项目来说变成了猜想，只有保守的估价和先前的经验能够在实践中减少变数。
Estimation and prediction of software projects becomes guesswork, where only conservative assessment and previous experience can reduce the variables in play.
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