大小单双技巧规律

简介：Difficult, not just difficult, simply difficult! Um? No, Laoban is here. Boss, be careful. If you have been absent from class for so long, your old class will definitely give you trouble. Pang Panglong glanced at the classroom door in front of him out of the corner of his eye. He noticed that the head teacher Sun Yuanyuan came in and couldn't help but whisper and even lowered his head to pretend. started reading.