果实有壳的

例句：

1. 1. The oak tree is the largest in the forest.
   橡树是森林中最大的树。
2. 2. The acorns are scattered on the ground.
   橡子散落在地上。
3. 3. The acorns are rich in nutrients and can be used as food for animals.
   橡子富含营养，可以作为动物的食物。