foundation course的用法和樣例：
例句
- Therefore, he laid a base course of crushed stone on top of a compact footing instead of the costly stone foundation.
因此他就在壓緊的路基上鋪碎石基層，而不使用造價很高的石塊路基。 - The villager autonomy is the modern rural foundation stone, and the guarantee of socialist new rural construction.
摘要村民自治是現代農村基層社會穩定的基石，是社會主義新農村建設的保障。
