albus

例句：

1. 1.The albus is a symbol of purity and elegance.
   天鹅是纯洁和优雅的象征。
2. 2. The albus glides gracefully across the lake.
   天鹅优雅地在湖面上滑行。
3. 3. The albus is a popular subject for birdwatchers.
   天鹅是观鸟爱好者的热门主题。