1, swing, refers to the game activity of swinging in the air with the help of ropes, which belongs to our traditional sports. Swing has a long history, and it is said that this activity existed in the Central Plains as early as the pre-Qin period.

2. A beach is land along the edge of water or flat land above the water surface formed by sand deposition. The famous beaches in China are Beihai Beach, Yalong Bay in Sanya and the first long beach in China.