sturt

例句：

1. 1. The old tree had a big stump that was still standing.
   那棵老树有一个很大的树桩，仍然竖立着。
2. 2. The farmer had to dig up the stump before he could plant the new tree.
   农民在种植新树之前不得不挖掉树桩。
3. 3.The stump of the fallen tree was covered in moss and lichen.
   倒下的树桩上长满了苔藓和地衣。