annulene

例句：

1. 1.The annulene is a rare and beautiful flower that blooms only once a year.
   安努莱恩是一种罕见的、美丽的花，每年只开一次。
2. 2.The annulene has a unique scent that attracts bees and butterflies.
   安努莱恩有一种独特的香味，吸引蜜蜂和蝴蝶。
3. 3. The annulene is used in traditional medicine to treat various ailments.
   安努莱恩在传统医学中被用来治疗各种疾病。