开始时，Adams博士和他的同事们用了三天多时间编写计算机程序以生成需要的矩阵。

Dr Adams and his colleagues began by writinga computer program that would generate such matrices, a task that took themmore than three years.

youdao

您可以在开始时就消除应用程序中的症状，否则可能要花费数天或数周时间来调试。

You can begin to eliminate symptoms from your applications that otherwise might take days or weeks to debug.

youdao

由于合营企业在开始时就需投入大量的管理时间和实际资产，其谈判的具体程序和内容也就很值得探讨。

Given the usual high initial investment in management time and physical assets, the detailed procedure and content of the negotiation of such arrangements are worthy of investigation.

youdao

And in fact, one of the lessons you may already be realizing with P sets is that things seem to take twice, three times, four times longer than you actually might think.

从习题集中你可能已经得出的一个教训就是,程序所花的实际时间往往是你开始以为的两倍，三倍，四倍甚至更长。

哈佛公开课 - 计算机科学课程节选