service tree

例句：

1. 1.The service tree is a symbol of the community's commitment to environmental sustainability.
   服务树是社区对环境可持续性承诺的象征。
2. 2. The service tree was planted as a memorial for the fallen soldiers.
   服务树被种植作为阵亡士兵的纪念。
3. 3.The service tree provides shade and shelter for many local birds and animals.
   服务树为许多当地鸟类和动物提供阴凉和庇护所。