墙脚

例句：

1. 1. The wall was old and crumbling at the base.
   这堵墙旧了，在角落部分已经破损不堪。
2. 2. The builders had to fix the base of the wall before they could start building.
   建筑工人在开始建造之前必须修复墙壁的底部。
3. 3. He leaned against the base of the wall for support.
   他靠在墙壁的底部以获得支撑。