annual forage species

例句：

1. 1.The annual forage species play a crucial role in maintaining the ecosystem's balance.
   年度饲料物种在维持生态系统平衡中起着至关重要的作用。
2. 2. The research on annual forage species is of great significance to the sustainable development of agriculture.
   对年度饲料物种的研究对于农业的可持续发展具有重要意义。
3. 3. The farmers carefully select the annual forage species to ensure the quality and quantity of their crops.
   农民们仔细选择年度饲料物种，以确保农作物的质量与数量。