A girl poses in front of tulips during the 2021 Tulip Time Festival in Holland, Michigan, the United States, on May 2, 2021. (Photo by Joel Lerner/Xinhua)

Photo taken on May 2, 2021 shows tulips at the 2021 Tulip Time Festival in Holland, Michigan, the United States. (Photo by Joel Lerner/Xinhua)

People take selfies with tulips during the 2021 Tulip Time Festival in Holland, Michigan, the United States, on May 2, 2021. (Photo by Joel Lerner/Xinhua)

People take photos during the 2021 Tulip Time Festival in Holland, Michigan, the United States, on May 2, 2021. (Photo by Joel Lerner/Xinhua)

A child in traditional Dutch attire poses with tulips during the 2021 Tulip Time Festival in Holland, Michigan, the United States, on May 2, 2021. (Photo by Joel Lerner/Xinhua)

Photo taken on May 2, 2021 shows tulips at the 2021 Tulip Time Festival in Holland, Michigan, the United States. (Photo by Joel Lerner/Xinhua)