工人们正在浇筑新大楼的地基。

Workers are pouring concrete for the new building's ___foundations.

这个基金会致力于资助贫困地区的教育事业。

The ___foundation is dedicated to funding education in impoverished areas.

良好的沟通是成功团队合作的基础。

Good communication is the ___foundation of successful teamwork.