edible root

例句：

1. 1.The roots of the tree are used to make wine.
   树的根部被用来酿酒。
2. 2.The roots of the plant are where the nutrients are stored.
   植物的根部是储存养分的地方。
3. 3.The roots of the tree are deep underground.
   树的根部深深地埋在地下。