树身

例句：

1. 1. The tree stood tall and proud in the park.
   这棵树在公园里高傲地矗立着。
2. 2. The tree's trunk was covered in moss.
   这棵树的树干上长满了苔藓。
3. 3. The tree's trunk is strong enough to support its weight.
   这棵树的树干足够强壮，能够支撑它的重量。