quellung

例句：

1. 1.
   植物
2. 2.
   动物
3. 3.
   金属
4. 1. The old man loved to collect rare plants from around the world.
   这位老人喜欢收集世界各地的稀有植物。
5. 2.The bird's song is a beautiful melody that can be heard in many parts of the world.
   鸟的歌声是一首美丽的旋律，可以在世界上许多地方听到。
6. 3.The yellow metal is often used as an alternative to gold for its durability and affordability.
   这种黄色金属通常被用作黄金的替代品，因为它既耐用又经济。