seedling rootstock

例句：

1. 1.The seedlings are just beginning to grow.
   这些幼苗刚刚开始生长。
2. 2.The farmer carefully planted the seeds in the ground.
   农民小心翼翼地将种子种在地里。
3. 3.The young tree is a symbol of hope for the future.
   这棵年轻的树是对未来希望的象征。