walled base

例句：

1. 1. The walled base was built to protect the city from natural disasters.
   这个墙基是为了保护城市免受自然灾害的侵袭而建造的。
2. 2. The foundation of the building is made of reinforced concrete.
   这座建筑的基础是用钢筋混凝土制成的。
3. 3.The team's success can be attributed to their strong base and solid strategy.
   团队的成功可以归因于他们坚实的基础和稳固的策略。