footing course

例句：

1. 1. The company's footing on the market has been shaky.
   该公司在市场上的立足点一直不稳定。
2. 2. The new project requires a solid footing in the market.
   这个项目需要在市场有一个稳固的基础。
3. 3.The foundation of the building is weak due to poor construction quality.
   由于建筑质量差，这座建筑物的基础很薄弱。