The difference between a vast sky and a vast sky.

The vast sky and the vast sky have different meanings. The vastness of the sky originally refers to the vastness of the sky, and later refers to people's words and imagination. The vastness of the sea comes from the saying that the sea jumps from a fish to a bird in the sky, which indicates the vastness of nature. Broad sky can also be used to show tolerance, such as taking a step back and broad sky. The vast sea and high sky symbolize the vast world and the long journey.