猜单双的游戏简介：He didn't see any movement. He took a deep breath, took a big step forward with his left foot, slightly bent the heel of his back foot and stood up on tiptoe. Then he exerted force with his left and right feet almost at the same time.
He didn't see any movement. He took a deep breath, took a big step forward with his left foot, slightly bent the heel of his back foot and stood up on tiptoe. Then he exerted force with his left and right feet almost at the same time.
