elm calligrapha

例句：

1. 1. The elm tree was a symbol of the town's beauty.
   榆树是这个城镇美丽的象征。
2. 2. The elm tree provided shade for the children playing in the park.
   榆树为公园里玩耍的孩子们提供了阴凉。
3. 3. The elm tree is an important part of the local ecosystem.
   榆树是当地生态系统的重要组成部分。