小单大单小双大双怎么分简介：The invigilator nodded, stood up, walked down, folded Su Can's papers and put them away. Seeing that the teacher was so easy to talk to, Su Can naturally packed up his pencil case and walked out of the classroom quickly.
The invigilator nodded, stood up, walked down, folded Su Can's papers and put them away. Seeing that the teacher was so easy to talk to, Su Can naturally packed up his pencil case and walked out of the classroom quickly.
