地球是一个动态的物体，其表面在不断变化。

解释：曲子高妙，不是人人都能和唱；说出真相，不是人人都能相信。

I think it's important to have a balance in life. You can't just work all the time; you have to have fun too.

收藏就是将事物聚集到自己身边，从世界中取出东西并使它们成为你自己故事的一部分。