You can swim for nine days to pick up stars, and you can cruise the five lakes and the sea of clouds. There are many famous aphorisms, such as royal sailing, for example, you can visit idolize for nine days, and you can cruise the five lakes and the sea of clouds. China Aerospace Day inherits the hope of the Millennium for the vast Milky Way, and takes you to appreciate the great beauty of the world with sweat and technology.