foundations
n. [建]基础（foundation 的复数）；房基
例句
Weak foundations caused the house to subside.
由于地基不实，房子出现下陷。
《牛津词典》
The foundations of the house are being laid today.
今天正在给房子打地基。
The foundations of the building are starting to sink.
楼房的地基开始下陷。
