It criticises the main contractor for seriously erring in its original estimates.
它批评主要承包商在其最初估价中犯了严重的错误。
Luis von Ahn, an assistant professor at Carnegie Mellon who was part of the original CAPTCHA team, estimates that people fill out close to 200 million CAPTCHAS a day.
卡内基·梅隆大学助理教授Luis von Ahn曾是CAPTCHA小组的成员,他估计每天约有2亿个CAPTCHA被用户填写。
Expenses incurred during the course of a project are recorded in specific job cost accounts to be compared with the original cost estimates in each category.
在项目实施过程中所发生的支出被记录在具体的工作成本报告中,以用来在每一成本项次下和原始成本估算相比较。
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