6个号码复式四中四有多少组

简介：There were only two of them left in the classroom that could accommodate more than fifty people. Cheng Keshu carefully arranged the books on the table to make them look relaxed and happy. Su Can, who was sitting in his seat, lowered his head and packed his schoolbag. Although he didn't speak, there was an indescribable tacit understanding inside that could not be explained.