自给自足

例句：

1. 1. The villagers have achieved self-sufficiency in agriculture.
   村民们已经实现了农业的自给自足。
2. 2.The company's self-reliance in technology has allowed it to stay ahead of the competition.
   该公司在技术上的自给自足使其能够领先于竞争对手。
3. 3. The farmer's self-sufficiency in food production is a testament to his hard work and dedication.
   这位农民在食品生产上的自给自足证明了他的辛勤工作和奉献精神。