C127

Su Ruo picked up a piece of Yao Ling Flower's petal and said to Su Xiaoyi, "Give me the small mirror."

Su Xiaoyi quickly handed Su Ruo a small mirror. Su Ruo took the small mirror and enlarged the petals of Yao Ling Hua through the small mirror. She concluded that the time limit for these petals was less than one day.

The soil on the petals carried sand and black powder