摇两颗骰子出现点数之和为7

简介：The bus swayed forward, and there were crowds of people inside. The people sitting there glanced out the window, or those who had worked the whole day slightly raised their heads and closed their eyes to rest, while the people standing looked indifferently, and the people outside the window looked like they were walking away in a hurry. After crossing the zebra crossing, the figure of the three-dimensional old overpass passes by on the bustling and complicated street.