swingletree

例句：

1. 1. The swingletree was a symbol of the town's history.
   摇摆树是这个小镇历史的象征。
2. 2. The swingletree provided shade andshelter for the local wildlife.
   摇摆树为当地的野生动物提供了遮荫和庇护所。
3. 3.The swingletree was featured in thetown's annual tree lighting ceremony.
   摇摆树是该镇年度树灯仪式的亮点。