这个故事通过大树与小鸟在四季中的互动，展现了它们之间深厚的友谊与相互关爱。因为季节的变化，它们的生活方式有所不同，但是彼此的思念和关爱成为了它们在自然界中温暖与力量的来源。
 
This story illustrates the deep friendship and mutual care between the tree and the bird through their interactions across the four seasons. As the seasons change, their lifestyles also vary, but their thoughts of each other and the care they share become the source of warmth and strength in their natural world.
 
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