阶梯倍投方法简介：Just then, the bus passed by the camphor tree and white catkins were falling on the street. She pushed the window open and the sunlight filtered through the gaps between the mottled tree shadows and cut into irregular shadows.
Just then, the bus passed by the camphor tree and white catkins were falling on the street. She pushed the window open and the sunlight filtered through the gaps between the mottled tree shadows and cut into irregular shadows.
