2.B
3. "The Play Peeks at the Shadow to Dial the Flowing Water Ping" is about a girl who quietly looks at the beautiful shadow in her water and does not move. "Hosta leans against the little dragonfly" means that the girl is too focused on her beautiful self in the water, and the little dragonfly stands playfully on her hairpin head. The appearance of small dragonflies reflects that the girl has been motionless for a long time, staring at her own shadow in the water, showing the beauty of her appearance. At the same time, the dragonfly's closeness to people also outlines a picture of harmony between man and nature. The author shows her love for life through the beautiful scene of a girl rowing.