food chain

例句：

1. 1. Thefood chain from farm to table is complex and delicate.
   从农场到餐桌的食物链是复杂而微妙的。
2. 2. The research on the food chain helps us understand the impact of climate change on ecosystems.
   对食物链的研究帮助我们理解气候变化对生态系统的影响。
3. 3.The food chain in this region is dominated by a few large predators, which can have significant ecological consequences.
   该地区的食物链主要由少数大型捕食者主导，这可以产生重大的生态后果。