foundation course

• 基层

foundation course的用法和样例：

例句

1. Therefore, he laid a base course of crushed stone on top of a compact footing instead of the costly stone foundation.
   因此他就在压紧的路基上铺碎石基层，而不使用造价很高的石块路基。
2. The villager autonomy is the modern rural foundation stone, and the guarantee of socialist new rural construction.
   摘要村民自治是现代农村基层社会稳定的基石，是社会主义新农村建设的保障。