What is the name of the four small red flags in Qingdao?

The name of the small red flags in Qingdao is called the wind of May. The singer of the wind of May is Dong Wenhua. The release date is April 23, 2009. The lyrics of the fragment are for the blossoming flowers to reveal their fragrance, "What if the flowers" The child does know and understands the vicissitudes of the sea of ​​people. She should raise her head and work hard. The wind in May blows on the trees, and the small red flags in Qingdao are fluttering. If only the birds really knew.