aurelia

例句：

1. 1.The Aurora Borealis is a natural wonder that can be seen from many parts of the world.
   极光是自然奇观，可以从世界的许多地方看到。
2. 2.Luna is the second planet from the sun and is known for its bright moon.
   月球是太阳的第二颗行星，以明亮的月亮而闻名。
3. 3. The Aurora Borealis is often seen as a symbol of beauty and mystery in nature.
   极光常常被视为自然界美丽和神秘的象征。