underpin
🇺🇸
/ˌʌndərˈpɪn/
🇬🇧
/ˌʌndəˈpɪn/
To provide a strong foundation or support for something.
The strong foundation underpins the stability of the building.
坚实的基础支撑着建筑的稳定性。
To strengthen a wall by adding support underneath it.
The engineers underpinned the old wall with steel beams to prevent it from collapsing.
工程师们用钢梁加固了旧墙,以防止其倒塌。