These courses provide the groundwork of statistical theory.这些课程讲授统计理论的基础知识。

I did all the groundwork but he got the credit.我做了所有的前期工作, 但他却得了功劳。

The President had some groundwork to do before presenting his plan to Congress.总统在向国会提交他的计划之前还有一些前期工作要做。

Yesterday's meeting was to lay the groundwork for the task ahead.昨天的会议是为以后的任务做准备。